Question

What is the total surface area of this square pyramid?

Answer 1

The total surface area of this square pyramid is
`297\ mm^(2)`

Explanation:

we know that

The surface area of a square pyramid is equal to

`SA=b^(2) +4[(1)/(2)(b)(h)]`

we have

`b=9\ mm` ----> the length side of the square base

`h=12\ mm` ----> the height of the triangular faces

substitute the values

`SA=9^(2) +4[(1)/(2)(9)(12)]=297\ mm^(2)`