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A 20 m deep well with diameter 7 m is du...

A 20 m deep well with diameter 7 m is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.

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To solve the problem, we need to find the height of the platform formed by the earth dug out from the well. We will use the concept of volume to equate the volume of the well (cylinder) to the volume of the platform (cuboid). ### Step-by-Step Solution: 1. **Calculate the Volume of the Well (Cylinder)**: - The formula for the volume of a cylinder is given by: \[ V = \pi r^2 h ...
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