Question

The diameter of a roller is 84 cm and its length is 120 cm. It makes 500
complete revolutions to move once over to a level a playground. Find the area
of the play ground.

Answer 1

i hope this will usful to u

Answer 2

area of playground= curved surface area of rollerX500
=2πrhx500
=2π42*120x500
=2π5040x500
=50,40,000π
=158,40,000m²