Question

- А
road roller takes 100 complete
revolutions to move once over to level a
road. Find the area of the road if the
diameter of the road roller is 140 cm and
length is 2 m.​

Answer 1

Answer:

440

Step-by-step explanation:

Area of road = 100× area covered in 1 revolution

100 × lateral surface area of cylinder

100 × 2Πrh

given = diameter = 140 cm = radius = 70cm = 70/100 m

h = 2m

100 × 2×22/7 × 70/100 ×2

22×10×2

440 is your answer