A square pyramid has lateral surface area equal to twice the base area. If base side = 6 cm, find slant height.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 6 cm.
Base area = 6 × 6 = 36 cm2
Lateral surface area of square pyramid = 2 × Base side × Slant height = 2 × 6 × l = 12l
Lateral surface area = 2 × 36 = 72 cm2
12l = 72
⇒ l = 72/12 = 6 cm