Question

A road roller is 350cm long and it's diameter is 85cm .it takes 500 complete revolutions to level the road. Find the area covered by in meter square.

Answer 1

The wheel of a road roller is a cylinder
Its height is 350 cm and radius is 85/2 cm
CSA of the cylinder = 2πrh
 = 2×22/7×85/2×350
 =93500 cm²
Area covered= 500×CSA
=500×93500
=46750000 cm²
In m²
=46750000/10000
=4675 m²