Question

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.​

Answer 1

Answer:

2.5m is the height of the platform.

Step-by-step explanation:

Volume of the well (cylinder) = Volume of platform

πr²h= l×b×h

22 × 7 × 7 × 20= 22×14×h

7 2 2

770 = 308×h

h = 2.5 m

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