# What is the formula for the surface area of a triangle?

## What is the formula for the surface area of a triangle?

So, the area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle. Example: Find the area of the triangle. The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.

### What are all the surface area formulas?

Variables:

Surface Area Formula Surface Area Meaning
SA=2B+Ph Find the area of each face. Add up all areas.
SA=B+12sP Find the area of each face. Add up all areas.
SA=2B+2πrh Find the area of the base, times 2, then add the areas to the areas of the rectangle, which is the circumference times the height.

#### What is the surface area of a triangular pyramid?

The surface area of a right triangular pyramid formula is Base Area+12(Perimeter×Slant Height) Base Area + 1 2 (Perimeter × Slant Height ) . After putting the values we get an expression of the surface area of the triangular pyramid formula as 1⁄2(a × b) + 3⁄2(b × s).

How do you find total surface area of a triangular prism?

The formula used to calculate the surface area of a triangular prism is, Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 + S2+ S3)L + bh; where ‘b’ is the bottom edge of the base triangle, ‘h’ is the height of the base triangle, L is the length of the prism and S1, S2 and S3 are the …

How do you find the total surface area of a shape?

Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.

## How do you find mass formula?

One way to calculate mass: Mass = volume × density. Weight is the measure of the gravitational force acting on a mass.

### How do you calculate the surface area of a triangle?

To find the area of the triangular faces, use the formula A = 1/2bh, where A = area, b = base, and h = height. Once you have the areas of all sides and faces, you simply add them together to get the surface area.

#### What is the correct formula for the area of a triangle?

Area of a Triangle Formula The area of the triangle is given by the formula mentioned below: Area of a Triangle = A = ½ (b × h) square units where b and h are the base and height of the triangle, respectively.

How does one calculate the area of a triangle?

The typical formula for calculating the area of a triangle is 1/2(Base)*(Height) which many people describe as one-half the base of the triangle times the height. Example: A triangle with base 3 feet and height 4 feet has an area of 1/2*3ft*4ft = 1/2 * 12(ft^2) = 6 (ft^2) = 6 square feet.

How do you calculate the surface area of a triangle prism?

There is a single formula you can use to calculate the surface area of a triangular prism: SA = bh + (s1 + s2 + s3)H. In the above formula, b = the base and h = the height of the triangle, s1, s2, and s3 = the length of each side of the triangle, and H = the prism’s height (which is the same as the rectangles’ length).

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