Question

The net of a pyramid is shown below:

The net of a square based pyramid, with base edges labeled 5 inches and the height of the triangle labeled 10 inches.

Answer 1

Explanation:

height of pyramid = √(10²-(5/2)²) = √93.75

volume of pyramid = ⅓b²h = ⅓·5²√93.75 ≅ 80.69 in³

lateral area = 2×5×10 = 100 in²

base area = 5² = 25 in²

surface area = 100+25 = 125 in²