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A square pyramid shaped toy is cut horizontally from 9 cm height to make a frustum. The base side and upper side of the frustum are 20 cm and 12 cm respectively. What is the volume of the square pyramid frustum?

A square pyramid shaped toy is cut horizontally from 9 cm height to make a frustum. The base side and upper side of the frustum are 20 cm and 12 cm respectively. What is the volume of the square pyramid frustum? Correct Answer 2352 cm<sup>3</sup>

Given:

Area of square = side2

Top area = 122 = 144 sq.cm

Base area = 202 = 400 sq.cm

Volume of frustum = (h/3) × (A1 + A2 + √A1√A2)

Volume of frustum = (9/3) × (400 + 144 + 12 × 20)

= 3 × 784 

= 2352 cubic cm

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