Question

Find the volume of a regular triangular pyramid if it has height h=12 cm, base edge b=10 cm and height of the triangular base hb ≈ 8.7 cm.

Answer 1

it's 174

Explanation:

Area of the base is .5 * 10 * 8.7 = 43.5

Volume = (1/3) * 43.5 * 12 = 174