Question

9. A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length 1m.​

Answer 1

$\longrightarrow \bf \: 1 \: Revolution = 2\pi \: rh \\ \longrightarrow \bf \: r = \frac{84}{2}cm \\ \\ \longrightarrow \bf42cm \: \\ = 1980m ^{2}$

Answer 2

$refer \: to \: attachment$