A cylindrical roller with diameter 77 cm and height 1 m is used to level a rectangular park with dimensions22 * 11. Find the number of revolutions required to level the park.

100

Step-by-step explanation:

We have the circumference of cyclinder

=πD

=length covered by one single revolution.

So,

Length=3.14*77 = 242 cm = 2.42 m Total area = 22*11=242 m^2

=> Total number of revolutions=242/2.42=100