Tony's architecture firm is constructing a square pyramid play structure for a school. The length of one side of the base will be 9 feet, and each face is a triangle with a height of 8 feet. The pyramid will be open at the bottom and not
covered. What will be the amount of building material needed to cover the pyramid?

A: 144 square feet

B: 225 square feet

C: 288 square feet

D: 369 square feet
(no it doesn’t have an image)