Question

please solve this fast ....

Answer 1

Answer:

Step-by-step explanation:

The volume of earth dug out is the same in both the cylinder and cuboid.

vol. of cylinder = π *r*r*h

                         = 3.14*1.4*1.4*25

                         = 153.94 m²

vol. of cuboid = l*b*h

                       = 70*44*h

vol. of cuboid = vol. of cylinder

70*44*h = 153.94

h=153.94/3080

h=0.05( approx.)