Question

A turf roller is 0.8m wide with a

diametrer of o.4m. find the area
of the lawn
covered in m², if the
roller rotates, 20 times

Answer 1

≈ 20.11 m²

Explanation:

Area of lawn covered by one full rotation:

• Ch = πdw, where
• C= circumference of the roller,
• w = width of the roller,
• d = diameter of the roller

Area covered by 20 rotations of the roller:

• 20*πdw = 20π*0.4*0.8 ≈ 20.11 m²