Asked by Anonymous

A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a platform of dimensions 28m by 22m.find the hight of the platform.
Answered by PsyDAG
πr^2h = w*l*h

π(3.5)^2*40 = 28 * 22 * h

Solve for h.
Answered by gondere
h:4.995m

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