Question

Estimate the original volume of the pyramid in Fig. 15.28, given that its frustum has a 4 m by 4 m square top which is 12 m vertically above the square base which is 20 m by 20m.
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Answer 1

The volume of the pyramid is 2496 cu.m.

What is a Pyramid ?

A pyramid is a three dimensional structure which has a polygon base and  in general triangular faces which join at the top .

It is given that

A pyramid $\rm frustum$ has a 4 m by 4 m square top

Height = 12 m

Base = 20 m

The volume of a square pyramid with a  $\rm frustum$ is given by

V = (1/2) * ( Area of base + Area of  $\rm frustum$ ) * height of the  $\rm frustum$ from the base

V = 0.5 * ( 20 *20 + 4*4 ) * 12

V = 2496 cu.m

The volume of the pyramid is 2496 cu.m.

To know more about Pyramid

brainly.com/question/13057463

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