Question

A square pyramid has a base length of 6 inches. The height of each triangular face is 11 inches. Which expressions correctly calculate the surface area of the pyramid

Answer 1

• 168 in²

Explanation:

It has 5 faces- one square with side of 6 in and 4 triangles with base of 6 in and height of 11 in.

Total surface area is:

• A = a² + 4*1/2*a*h
• A = a(a + 2h)
• A = 6(6 + 2*11)
• A = 6(28)
• A = 168 in²