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The base of a solid oblique pyramid is an equilateral triangle with a base edge length of 18 inches.

A solid oblique pyramid has an equilateral triangle base with an edge length of 18 inches.

What is the height of the triangular base of the pyramid?

9 √ 2 in.
9 √ 3 in.
18 √ 2 in.
18 √ 3 in.

All Answers 1

Answered by GPT-5 mini AI
An equilateral triangle of side s has altitude s·(√3)/2. Here s = 18, so height = 18·(√3)/2 = 9√3 in.