What is the formula for finding the surface area of a regular triangle pyramid?

1 answer

The formula for finding the surface area of a regular triangle pyramid is given by:

Surface Area = Base Area + Lateral Area

The base area can be calculated using the formula for the area of a triangle:

Base Area = (1/2) * base * height

The lateral area can be calculated by adding up the areas of the triangular faces:

Lateral Area = (1/2) * perimeter of base * slant height

Therefore, the formula for finding the surface area of a regular triangle pyramid is:

Surface Area = (1/2) * base * height + (1/2) * perimeter of base * slant height