Question

The base of this regular right pyramid is a square. What is its surface area? A.21 ft B.12 ft C.8 ft D.4 ft

Answer 1

Answer: O 21 ft^2.

Explanation:

(1/2)Pl + B where P is the base perimeter, l is the slant height, and B is the base area.

(1/2)12 x 2 + 9

6 x 2 + 9

12 + 9

21

Let me know if this is right! :)