Find the total surface area of the triangular pyramid. Each of the faces (sides) has an area of 50.5 square inches.

By definition we have:

A triangular pyramid (also called tetrahedron) is a polyhedron whose surface is formed by a base that is a triangle and triangular lateral faces that converge in a vertex that is called apex (or apex of the pyramid).

It will be composed, therefore, by 4 faces, the triangular base and three lateral triangles that converge at the vertex.

Thus, the surface area is:

As = 4 * (50.5) = 202 in ^ 2

Answer:

The total surface area of the triangular pyramid is:

202 in ^ 2