_{Triangle sq ft calculator Using the above triangular formula, we can solve this. From the diagram, we have three triangles namely ABC, ACD, & ADE. Triangle 1 – Δ ABC, Where S = (5+7+10)/2 = 11; Formula for Area = √S(S-a)(S-b)(S-c) = √11*(11-5)*(11-7)*(11-10) = 16.25 Sq.ft. Triangle 2 – Δ ACD, Where S = (10+7+10)/2 = 13.5 }

_{Keisan English website (keisan.casio.com) was closed on Wednesday, September 20, 2023. Thank you for using our service for many years. Please note that all registered data will be deleted following the closure of this site. The Area of a Triangle with three known Sides calculator computes the area of a triangle based on the length of its three sides.Calculator online for a the surface area of a capsule, cone, conical frustum, cube, cylinder, hemisphere, square pyramid, rectangular prism, triangular prism, sphere, or spherical cap. Calculate the unknown defining side lengths, circumferences, volumes or radii of a various geometric shapes with any 2 known variables. Online calculators and formulas for a surface area and other geometry problems.The area of a right triangle is equal to ½ the product of the base times the height, or 1/2 (BXH)= Area. The area calculation for the right triangle below would look like: 1/2 (B X H) = AREA. 1/2 (14 X 6) = 42 SQUARE FEET. On a calculator you would perform: 14×6/2. You can use a shortcut method when estimating the area for a gable end for a ...This calculator completes the analysis of an irregular triangle given any three inputs. Please input only three values and leave the values to be calculated blank. In the case where two solutions to the same inputs are possible this calculator will give the two solutions. The triangle area is also calculated. Step 1: Multiply the given measurements in yards. Volume = length x width x height. = 12 yd x 6 yd x 9 yd. = 648 yd 3. Step 2: Multiply the result by 27 to convert it into feet. = 648 x 27 ft 3. = 17496 ft 3. Step 1: Enter the values of any two angles and any one side of a triangle below which you want to solve for remaining angle and sides. Triangle calculator finds the values of …When writing about 30 60 90 triangle, we mean the angles of the triangle, that are equal to 30°, 60° and 90°. Assume that the shorter leg of a 30 60 90 triangle is equal to a. Then: The second leg is equal to a√3; The hypotenuse is 2a; The area is equal to a²√3/2; and. The perimeter equals a (3 + √3). The 30 60 90 triangle formulas ...Solving using the area of a triangle formula c 2 / (2 * (tanα -1 + tanβ -1 )) = 225 / (2 * (0.577350 -1 + 1.732051 -1 )) = 48.7 square feet. Obviously using both a tangent calculator and an exponent calculator is quite helpful. Practical application of triangle geometry This calculator completes the analysis of an irregular triangle given any three inputs. Please input only three values and leave the values to be calculated blank. In the case where two solutions to the same inputs are possible this calculator will give the two solutions. The triangle area is also calculated.17595 ÷ 144 = 122.1875 rounded to 123. The area of this gable is 123 square feet. If you are doing a rough estimate, you can round the wall length up to 35 feet, multiply this number by 7 (the height) and divide the result by 2; 35 * 7 = 245 ÷ 2 = 122.5 square feet. Or better yet, round the 7 feet 1 5/8 to 7.5 feet;When the number of sides, n, is equal to 3 it is an equilateral triangle and when n = 4 is is a square. The following formulas were used to develop calculations for this calculator where a = side length, r = inradius (apothem), R = circumradius, A = area, P = perimeter, x = interior angle, y = exterior angle and n = number of sides.How to calculate square feet for triangles. The square footage formula for triangles is: ... The landscaper uses the formula for calculating the square feet of a rectangle and performs the following calculations: A = 60 ft. x 80 ft. = 4,800 ft.2. The landscaper determines they need to buy enough fertilizer to cover 4,800 square feet of …Land area calculation. Calculating areas of irregular polygons is a non-trivial task without sophisticated surveying instruments. One way to calculate areas of such plots, is to break them into a number of triangular-shaped plots as in image shown below and then find the area of each triangle using Heron's formula and sum them up. As ...Solving using the area of a triangle formula c 2 / (2 * (tanα -1 + tanβ -1 )) = 225 / (2 * (0.577350 -1 + 1.732051 -1 )) = 48.7 square feet. Obviously using both a tangent calculator and an exponent calculator is quite helpful. …The hypotenuse of a right triangle is calculated by finding the square root of the sum of the squares of the triangle’s legs. It can be expressed using the formula c = √(a2 + b2), where a and b represent the legs of the triangle and c indic... In such a triangle, the legs are equal in length (as a hypotenuse always must be the longest of the right triangle sides): a=b a = b. One leg is a base, and the other is the height – there is a right angle between them. So the area of an isosceles right triangle is: \text {area}=\frac {a^2} {2} area = 2a2.Multiply your square footage by your depth. 31.5 sq ft × 0.25 ft = 7.875 cubic feet. You need mulch for 5 beds, so 5 × 7.875 = 39.375 cubic feet. Divide by 27 to convert the mulch volume into cubic yards. 39.375 ÷ 27 = 1.458 cubic yards. The Mulch Calculator makes this calculation easy by doing all the conversions and the math for you.Feb 8, 2023 · How to Calculate Square Footage of a Triangle. To figure the square footage of a triangle, measure the base and height in feet. Then use this formula: Square footage of a triangle = 0.5 x base x height. So, if the base of your triangle is 10 feet and the height is 7 feet, the total square footage of the triangle is 35. The calculator cannot account for complex shapes based on a measurement of square footage alone. The Area Calculator can be used to calculate the area of a variety of simple shapes that together can comprise the area of the roof. Using the aggregate area of these simple shapes can yield a more accurate roof area to be used with the Roofing ...8. Multiply the number you come up with y the cost of siding as figured by sq. ft. For example: 2625 sq. ft. X $5 (per sq. ft.)= $13,125. 9. Add tax. How Big is a Square of Siding? A “square” is a single unit of siding to be installed on a house and is 100 square feet (10’ X 10’) in size.Area & Perimeter of a Square calculator uses side length of a square, and calculates the perimeter, area and diagonal length of the square. It is an online Geometry tool requires side length of a square. Using this calculator, we will understand the algorithm of how to find the the perimeter, area and diagonal length of a square. Camping world ridgeland south carolina. The calculator will estimate the volume of concrete or aggregate needed for your project. You can calculate how much concrete you need for your construction project using this calculator that works in both US Customary Units (feet and inches) and International System of Units or metric units (meters and centimeters) of measurement.Jun 24, 2022 · To calculate the square footage of a rhombus, you can use the following formula: A = distance from one pair of opposite angles x distance from the other pair of opposite angles. In this equation, "A" is the area of the rhombus in square feet and the distances from both pairs of opposite angles are in feet. If you have a floor of 20 feet long and 25 feet wide, the square foot calculator can be used to measure the wall. The floor will be 500 square feet. If the measurement of one tile is 20 square feet, the area of the floor will be divided by 20. A floor with 500 square feet area will take 25 tiles (20 square feet each) to cover the whole floor. 2.Linear feet = Square feet / width of one linear feet. LF = Sq ft / width of one LF. LF is the abbreviation for linear feet. Sq ft is the abbreviation for square feet. ft 2 is the abbreviation for square feet This type of triangle can be used to evaluate trigonometric functions for multiples of π/6. 45°-45°-90° triangle: The 45°-45°-90° triangle, also referred to as an isosceles right triangle, since it has two sides of equal lengths, is a right triangle in which the sides corresponding to the angles, 45°-45°-90°, follow a ratio of 1:1:√ ... As a unit of area, it has a magnitude equivalent to the area of a square with sides of 1 foot. This size makes it helpful to talk about the area of everyday objects such as a house (typically 500-1000 sq ft), a room (~100 sq ft) and even an A4 piece of paper (0.65 sq ft) without having to use either very big or very small numbers.Learn how to calculate the square feet of triangles of different types, such as base and height, three sides, side-angle-side, and angle-side-angle. Enter the measurements of the triangle and get the area in square feet instantly.An acre is a unit of measurement which directly relates to the square mile and is commonly used to describe the size of a piece of land. An acre does not take on a particular set shape. Acreage is a plural form of acre used to describe land containing multiple acres. One acre consists of 4,840 square yards, 43,560 square feet, or 4,050 square ...area = π × 18 ft × 20 ft= 1130.97 sq ft. Parallelogram. A parallelogram is a simple quadrilateral which has two pairs of parallel sides, where the opposite sides and angles …If requested, after the calculation you can choose to make the conversion into other units. Below you can find a short list on how to convert the square footage: 1 acre = 43,560 square foot; 1 square yard = 9 square foot; 1 square meter = 10.76 square foot; 1 square inch = 0.00064516 square foot. 25 Mar, 2015. This tool is designed to find the sides, angles, area and perimeter of any right triangle if you input any 3 fields (any 3 combination between sides and angles) of the 5 sides and angles available in the form. The algorithm of this right triangle calculator uses the Pythagorean theorem to calculate the hypotenuse or one of the other two sides ... The Square Footage Calculator helps you compute the square footage of an area like room (e.g. kitchen or living room) based on some simple measurements and the shape of the area. INSTRUCTIONS:: To compute the square footage of the area, you must first identify the shape of the area. The common choices are:A square calculator is a special case of the rectangle where the lengths of a and b are equal. Units: Note that units of length are shown for convenience. They do not affect the calculations. The units are in place to give an indication of the order of the calculated results such as ft, ft 2 or ft 3. Any other base unit can be substituted.The Board Foot Calculator is a simple online tool for calculating board feet without a complicated formula. You simply enter the length, width and thickness of your boards, and how many of them you have, to easily determine the total number of board feet. When calculating board feet, you are determining what the total volume of wood you have is. Multiply the length by the width (or height) in feet to calculate the square feet. For example- if you have a rectangular piece of paper that is 7 feet in length and 6 feet in width, then calculate the area of a rectangle piece of paper in feet. Given, Length of paper = 7 feet. Width of paper = 6 feet. Square feet = 7 feet x 6 feet = 42 square ... Using the calculator, the square footage of this living room is 261.54 square feet. To calculate this manually: (22.83 x 15) - (9.03 x 8.96) = 261.54 square feet. You can also break the area down into two rectangles, and then add it up to get the total -shaped area (13.74 x 15) + (9.03 x 5.91). Feb 8, 2023 · How to Calculate Square Footage of a Triangle. To figure the square footage of a triangle, measure the base and height in feet. Then use this formula: Square footage of a triangle = 0.5 x base x height. So, if the base of your triangle is 10 feet and the height is 7 feet, the total square footage of the triangle is 35. Directions: Enter any combination of feet and/or inches into the calculator below. You can use this square footage calculator to calculate siding square footage or any other square feet needed (like: roofing, carpet, etc.) You can also use this tool to convert feet to inches, convert inches to feet and calculate square inches. rectangle examples.2. CIRCLE. For a circular carpet, the only value you need to put in the calculator is the radius of your carpet. Then, the carpet price calculator will work out the area with this equation: carpet area = π × radius². To calculate the carpet's cost, put in the price of the carpet per unit and the area you have just calculated in the following formula: ...Free Triangles calculator - Calculate area, perimeter, sides and angles for triangles step-by-stepHow to calculate the volume of a triangular prism? You need to take or know (from a plan/schematic) three length measurements. Make sure they are all in the same length unit, or convert accordingly until they are. The resulting output from our triangular prism calculator is always in cubic units: in 3, ft 3, yd 3, mm 3, cm 3, meters 3, etc.The lateral surface area or lateral area of a square pyramid is the total area of its 4 triangular faces. We calculate the lateral area as: L S A = a a 2 ... let's see how to use this total surface area of a square pyramid calculator to solve the problem given above: ... Height (h) = 480 ft; Base edge (a) = 756 ft; Switch the units from cm to ...This tool is designed to find the sides, angles, area and perimeter of any right triangle if you input any 3 fields (any 3 combination between sides and angles) of the 5 sides and angles available in the form. The algorithm of this right triangle calculator uses the Pythagorean theorem to calculate the hypotenuse or one of the other two sides ... Sep 1, 2023 · To calculate the area of an equilateral triangle, you only need to know the side: area = a² × √3 / 4. Since √3 / 4 is approximately 0.433, we can formulate a quick recipe: to approximate the area of an equilateral triangle, square the side's length and then multiply by 0.433. Raising cane's chicken fingers east lansing photos. Rarest character in akinator. From there, multiply the length and width together to arrive at the total square footage of your deck. For instance, if the longest point of your deck is 20 ft and the widest point of your deck is 16 feet, your deck’s total square footage would be 320 square feet. 20 ft (length) x 16 ft (width) = 320 sq. ft.Scalene Triangle Concrete Calculator. A Scalene Triangle is a triangle shape where all three sides have different lengths, and none of the angles are equal. To calculate the volume of a Scalene triangle-shaped slab, you will have to enter the lengths of all three sides and the required depth of the slab. Note: using measurements where the ... Directions: Use the calculator above to calculate your square footage. You can enter feet only, inches only or any combination of the two. *Square Footage is also known as (a.k.a) square feet, square ft, SqFt, Sq.Ft., sq.ft., ft2 & ft 2 **This Calculator also calculates square inches, total height in feet, total height in inches, total length in feet and total …Aug 29, 2023 ... Foot/sq.sec (ft/sec^2), G (g), Galileo (gal), Inch/sq.sec (in/sec^2) ... Finally, take the square root of the result to obtain the area of the ...Tank volume calculator online - calculate the capacity of a tank in gallons, litres, cubic meters, cubic feet, etc. Tank capacity calculator for on oil tank, water tank, etc. supporting 10 different tank shapes. Quick and easy tank volume and tank capacity calculation (a.k.a. tank size). Servers as a liquid volume calculator with output in US gallons, UK gallons, …sq ft calculator - How to calculate square footage of an irregular shape https://www.squarefootagearea.com/calculator/square-footage-calculator/ |...Calculate easily the geometric properties of a regular hexagon. ... there are 4 triangles. Since he sum of internal angles in one triangle is 180°, 4 triangles, side by side, should measure up to …Measure the width and height of windows, doors and any other areas that will not be covered with siding. Multiply height by width for each area and add to get total square footage not covered with siding. Enter this total square footage here. Total sq ft. Steps 2 and 3 have been added together, and Step 4 has been subtracted from this sum.Jun 5, 2023 · You can calculate the area of such a triangle using the trigonometry formula: Base area = 0.5 × a × b × sin (Angle γ) In this particular case, our triangular prism area calculator uses the following formula combined with the law of cosines: Area = Length × (a + b + √ ( b² + a² - (2 × b × a × cos (Angle γ)))) + a × b × sin (Angle γ) …. Keisan English website (keisan.casio.com) was closed on Wednesday, September 20, 2023. Thank you for using our service for many years. Please note that all registered data will be deleted following the closure of this site.Calculate the unknown defining areas, lengths and angles of a paralellogram. Online calculators and formulas for an annulus and other geometry problems. ... √ = square root Calculator Use. ... The units are in place to give an indication of the order of the calculated results such as ft, ft 2 or ft 3. Any other base unit can be …If you have a floor of 20 feet long and 25 feet wide, the square foot calculator can be used to measure the wall. The floor will be 500 square feet. If the measurement of one tile is 20 square feet, the area of the floor will be divided by 20. A floor with 500 square feet area will take 25 tiles (20 square feet each) to cover the whole floor. 2.Find the perimeter of the frame. Intersection 64854. Draw any triangle. Make the axis of its two sides. Their intersection is point S. (a) Measure the distance of point S from all three vertices (b) Draw the axis of the third party. A triangle 10. A triangle has vertices at (4, 5), (-3, 2), and (-2, 5).Area of Triangle (A): The calculator returns the area in square feet (ft2). However, this can be automatically converted to other area units (e.g. square meters) via the pull-down menu. The Math / Science The formula for the area of a triangle base on the length of its threeside is: `A = sqrt((a+b+c)/2((a+b+c)/2-a)((a+b+c)/2-b)((a+b+c)/2-c))`√ = square root Calculator Use Polygon Calculator. ... The units are in place to give an indication of the order of the calculated results such as ft, ft 2 or ft 3. Any other base unit can be substituted. ... is equal …Free Triangles calculator - Calculate area, perimeter, sides and angles for triangles step-by-stepIf your room has many angles, use this formula for a triangle — it’s just a rectangle or square cut in half! Length (in feet) x width (in feet) ÷ 2 = area in sq. ft. How … Triangle sq ft calculator, Square footage calculator is an easy tool that enables you to calculate an area in square feet as well as perform conversions, such as finding out how many square feet are in an acre. In this article, we are going to explain how to calculate square footage and understand the square footage formula., The term 'square footage' denotes an area of measurement, with 'square feet' denoting a unit of area. Our square footage calculator applies the formulas below to determine the square footage of various shapes: Square: Area (ft 2) = Side Length 2; Rectangle: Area (ft 2) = Length × Width , Select the type of shape for which you need to calculate square footage. You can choose from square, rectangle, triangle, circle, and ellipse. enter the asked values in the corresponding input boxes. Note that, for each type of shape, you may need to enter different types of values., Step 3: Convert Inches To Feet and Calculate Square Footage. Divide your measurements in inches by 12, which will convert your measurements into feet. Then, use our square footage calculator to find the area of your space’s shape. If you’ve divided a room into multiple shapes, remember to add up all of the shapes’ areas to find the room ..., Area of Triangle (A): The calculator returns the area in square feet (ft2). However, this can be automatically converted to other area units (e.g. square meters) via the pull-down menu. The Math / Science The formula for the area of a triangle base on the length of its threeside is: `A = sqrt((a+b+c)/2((a+b+c)/2-a)((a+b+c)/2-b)((a+b+c)/2-c))`, With this perimeter calculator, you don't need to worry about perimeter calculations anymore. Below you'll find the perimeter formulas for twelve different shapes, as well as a quick reminder about what a perimeter is and a perimeter definition. Read on, give it a try, or check this calculator's twin brother – our comprehensive area calculator., Oct 3, 2023 · Calculate the square footage of the deck: 12 ft × 12 ft = 144 ft². Choose the size of a single decking board, e.g., 8 ft long and 0.5 ft wide. Calculate the square footage of the decking board: 8 ft × 0.5 ft = 4 ft². Find the number of decking boards needed (plus 10% for waste): 144 ft² / 4 ft² × 1.1 = 40. , Scalene Triangle Concrete Calculator. A Scalene Triangle is a triangle shape where all three sides have different lengths, and none of the angles are equal. To calculate the volume of a Scalene triangle-shaped slab, you will have to enter the lengths of all three sides and the required depth of the slab. Note: using measurements where the ..., If you are human, leave this field blank. Calculate. Copyright 2023 - Calculator.dev, Follow these steps: Select the triangle type from the drop-down list. You can find the square feet of triangles of these types: base and height; Three sides ( SSS ); …, The area of a right triangle is equal to ½ the product of the base times the height, or 1/2 (BXH)= Area. The area calculation for the right triangle below would look like: 1/2 (B X H) = AREA. 1/2 (14 X 6) = 42 SQUARE FEET. On a calculator you would perform: 14×6/2. You can use a shortcut method when estimating the area for a gable end for a ... , You can use these calculations to determine that here. Use this calculation to calculate the area of a square or a rectangle. This calculation will calculate the area of a circle using either the diameter, the radius or the circumference as input. Calculate the area of a (right-angled) triangle with this calculation., Calculate the square footage of the deck: 12 ft × 12 ft = 144 ft². Choose the size of a single decking board, e.g., 8 ft long and 0.5 ft wide. Calculate the square footage of the decking board: 8 ft × 0.5 ft = 4 ft². Find the number of decking boards needed (plus 10% for waste): 144 ft² / 4 ft² × 1.1 = 40., Take the total square footage of your space and multiply it by .10. Formula: Total square footage x .10 = amount you need to add. Example: 2017.35 square feet x .10 = 201.7 square feet. Take the number you get from the step above and add it to the total square footage of the space you’re working with., Solving using the area of a triangle formula c 2 / (2 * (tanα -1 + tanβ -1 )) = 225 / (2 * (0.577350 -1 + 1.732051 -1 )) = 48.7 square feet. Obviously using both a tangent calculator and an exponent calculator is quite helpful. Practical application of triangle geometry, Jul 28, 2023 · First measure the length and width of the larger section labelled A, then do the same for the smaller section labelled B. A: 14ft × 10 ft = 140 sq. ft. B: 6 ft × 5 ft = 30 sq. ft. Now, add both values to calculate the square footage of the room: 140 sq.ft. + 30 sq.ft = 170 sq. ft. So you'll need 170 sq. ft. of flooring materials for this room. , How to Calculate Square Footage of a Triangle. To figure the square footage of a triangle, measure the base and height in feet. Then use this formula: Square footage of a triangle = 0.5 x base x height. So, if the base of your triangle is 10 feet and the height is 7 feet, the total square footage of the triangle is 35., 17595 ÷ 144 = 122.1875 rounded to 123. The area of this gable is 123 square feet. If you are doing a rough estimate, you can round the wall length up to 35 feet, multiply this number by 7 (the height) and divide the result by 2; 35 * 7 = 245 ÷ 2 = 122.5 square feet. Or better yet, round the 7 feet 1 5/8 to 7.5 feet; , Homes similar to 18498 Running Pine Ct are listed between $25K to $1M at an average of $265 per square foot. NEW CONSTRUCTION. $754,094. 4 beds. 3.5 baths. 2,759 sq ft. 17608 Barron Heights Rd, Dumfries, VA 22025., Find the perimeter of the frame. Intersection 64854. Draw any triangle. Make the axis of its two sides. Their intersection is point S. (a) Measure the distance of point S from all three vertices (b) Draw the axis of the third party. A triangle 10. A triangle has vertices at (4, 5), (-3, 2), and (-2, 5)., Calculator Use. An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees. The altitude shown h is h b or, the altitude of b. For equilateral triangles h = ha = hb = hc. If you have any 1 known you can find the other 4 unknowns. So if you know the length of a side = a ..., sin (A) < a/c, there are two possible triangles. solve for the 2 possible values of the 3rd side b = c*cos (A) ± √ [ a 2 - c 2 sin 2 (A) ] [1] for each set of solutions, use The Law of Cosines to solve for each of the other two angles. present 2 full solutions. Example: sin (A) = a/c, there is one possible triangle., It is to determine the area of an irregular polygon. The generally accepted manner for finding the area of an irregular polygon is to break it up into triangles and possibly a rectangle, then calculate each and add the totals. Enter the length of the sides for each triangle you use; up to 10 of them. Triangles do NOT need to be right triangles., Calculate the square footage of the deck: 12 ft × 12 ft = 144 ft². Choose the size of a single decking board, e.g., 8 ft long and 0.5 ft wide. Calculate the square footage of the decking board: 8 ft × 0.5 ft = 4 ft². Find the number of decking boards needed (plus 10% for waste): 144 ft² / 4 ft² × 1.1 = 40., The Square Footage Calculator helps you compute the square footage of an area like room (e.g. kitchen or living room) based on some simple measurements and the shape of the area. INSTRUCTIONS:: To compute the square footage of the area, you must first identify the shape of the area. The common choices are:, A square calculator is a special case of the rectangle where the lengths of a and b are equal. Units: Note that units of length are shown for convenience. They do not affect the calculations. The units are in place to give an indication of the order of the calculated results such as ft, ft 2 or ft 3. Any other base unit can be substituted., May 30, 2017 ... So, half of 18 is 9, and 9 times 6 equals 54 square units. Questions ... calculate the area of a triangle with only the measure of it's angles?, The Square Footage Calculator estimates the square footage of a lot, house, or other surfaces in several common shapes. If the surface is complex in shape, it may be …, As a unit of area, it has a magnitude equivalent to the area of a square with sides of 1 foot. This size makes it helpful to talk about the area of everyday objects such as a house (typically 500-1000 sq ft), a room (~100 sq ft) and even an A4 piece of paper (0.65 sq ft) without having to use either very big or very small numbers., Calculator Use. An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees. The altitude shown h is h b or, the altitude of b. For equilateral triangles h = ha = hb = hc. If you have any 1 known you can find the other 4 unknowns. So if you know the length of a side = a ..., Solving using the area of a triangle formula c 2 / (2 * (tanα -1 + tanβ -1 )) = 225 / (2 * (0.577350 -1 + 1.732051 -1 )) = 48.7 square feet. Obviously using both a tangent calculator and an exponent calculator is quite helpful. Practical application of triangle geometry, Although side a and angle A are being used, any of the sides and their respective opposite angles can be used in the formula. This free triangle calculator computes the edges, angles, area, height, perimeter, median, as well as other values and a diagram of the resulting triangle. , The area of a right triangle is equal to ½ the product of the base times the height, or 1/2 (BXH)= Area. The area calculation for the right triangle below would look like: 1/2 (B X H) = AREA. 1/2 (14 X 6) = 42 SQUARE FEET. On a calculator you would perform: 14×6/2. You can use a shortcut method when estimating the area for a gable end for a ...}