πr^2h = w*l*h
π(3.5)^2*40 = 28 * 22 * h
Solve for h.
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.
2 answers
h:4.995m
5 answers