Question

The rain water from a roof 22m x 20m having diameter of base 2m and full. find the rainfall in cm. 0drains into a cylindrical vessel height 3.5m. If the vessel is just full,find the rainfall in cm

Answer 1

vol.of rainfall on surface = vol. of water in cylinder

lbh = πr^2h

22*20*h =22/7*1*1*3.5

h = 22*0.5/22*20

h= 0.5/20

h= 0.025m = 2.5cm