A 40m deep well with radius 3.5m is dug & the earth taken out is evenly spead to from a platform of dimension 28m by 22m.find the heght of the platfoem?

Answer 1

28*22*h = π*3.5^2*40
h ≈ 2.5m

Answer 2

2.5

Answer 3

student

Answer 4

please you can long solution?

Answer 5

to work