25. How much earth can be dug out of a circular well of height 14 cm and base
diameter of 28 cm? *
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calculate the volune of the well to find out the volume of earth which could be dug out.
r = d/2 = 28/2 = 14cm
v = π r^2 h
= 22/7 × (14)^2 × 14
= 22 × (14)^2 × 2
= 15092 cm^3
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