A standard right pyramid with a square base measuring 12 cm on each side has a height of 9 cm. Determine the ratio of the lateral surface area to the area of the base.
Show answer & explanation
Correct answer: A
Explanation
a = 12, h = 9
l = √(6² + 9²) = √117
LSA: Base = (2 × 12 × √117) : (12²)
= 24√117 : 144
= √117 : 6