What is the lateral surface area of a square pyramid with base side 10 cm and slant height 6 cm?
Show answer & explanation
Correct answer: D
Explanation
base side = 10 cm
Slant height = 6 cm
According to the formula:
Lateral surface area = 1/2 × perimeter × slant height
Perimeter = 4 × 10 = 40
Lateral surface area = 1/2 × 40 × 6 = 120 cm²