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.

 The number of revolutions required to level the park is 100.

Step-by-step explanation:

Given : Diameter of roller = 77 cm

Then radius of roller : r =

Height = 1 m = 100 cm

Curved surface area of roller =

Dimensions of park = 22 × 11 m

Then Area of park =

Now , the number of revolutions required to level the park = (Area of park) ÷ (Curved surface area of roller )

Hence, the number of revolutions required to level the park is 100.