## What is the formula for finding surface area of a triangular prism?

Next, multiply the base times height for the area of the triangles (bh), and add their three sides (s1 + s2 + s3).

Then, multiply the sum of the triangle sides by the height of the prism (H) and add the values together for the answer, remembering to include the appropriate unit of measurement.

## How do you find the surface area of prisms?

To find the surface area of a prism (or any other geometric solid) we open the solid like a carton box and flatten it out to find all included geometric forms. To find the volume of a prism (it doesn’t matter if it is rectangular or triangular) we multiply the area of the base, called the base area B, by the height h.

## What is the formula for a right triangular prism?

To calculate the volume of a triangular prism, measure the width and height of a triangular base, then multiply the base by the height by 1/2 to determine the triangle’s area. Next, measure the height of the triangular prism and multiply this by the triangle’s area to get the volume.

## How do you find the surface area of a triangular pyramid?

To find the surface area of a regular triangular pyramid, we use the formula SA = A + (3/2)bh, where A = the area of the pyramid’s base, b = the base of one of the faces, and h = height of one of the faces.