Two identical regular right pyramids, each with a square base of side 6 cm and a perpendicular height of 4 cm, are stacked one on top of the other such that their bases perfectly align. The top pyramid is inverted. Calculate the slant height of a single pyramid.
Show answer & explanation
Correct answer: D
Explanation
Given:
Side of square base = 6 cm
Height of pyramid = 4 cm
Formula:
Slant length = √(h × h + (a/2) × (a/2))
a/2 = 6/2 = 3
Slant length = √(4 × 4 + 3 × 3) = 5 cm