Question

A 20m deep well with diameter 7mm is dug and the earth from digging is evenly spread out to

form a platform 22m by 14m. Find the height of the platform​

Answer 1

Answer:

don't know!you say! ok

Answer 2

Step-by-step explanation:

The shape of the well will be cylindrical. Depth (h) of well = 20 m Radius (r) of circular end of well =7/2 m Area of platform = Length × Breadth = 22 × 14 m2 Let height of the platform = H Volume of soil dug from the well will be equal to the volume of soil scattered on the platform. Volume of soil from well = Volume of soil used to make such platform Therefore, the height of such platform will be 2.5 m.

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