Question

A well ,whose diameter is 14 m has been dug 10 m deep and the earth dug out is used to form an embankment 3 m wide around it .find the height of the embankment.​

Answer 1

$\huge{ \boxed{ Answer\:}}$

Radius of well = 7m

depth of well = 10 m

volume of well = πr²h

$\frac{22}{7} \times 7 \times 7 \times 10 = 1540 {m}^{3}$

radius of embankment = 3m

volume of embankment = 1540m³

height = ?

πr²h = 1540

$\frac{22}{7} \times 3 \times 3 \times h = 1540 \\ \\ h = 1540 \times 6 \times \frac{22}{7} \\ \\ h = 2940 \: m$

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Answer 2

Answer:

the given answer is wrong