Question

What is the surface area of the rectangular pyramid below?

A. 363 units2
B. 484 units2
C. 1026 units2
D. 242 units2

Answer 1

Option (A). 363 units²

Explanation:

Surface area of the rectangular pyramid = Area of the rectangular base + Area of the lateral sides of the pyramid

Area of the rectangular base = Length × Width

= 11 × 11

= 121 units²

Area of the lateral sides = 4(Area of one lateral side)

= 4[
`(1)/(2)(\text{Base})(\text{Height})`]

= 2(11)(11)

= 242 square units

Area of the rectangular pyramid = 121 + 242

= 363 square units

Therefore, Option (A) will be the answer.