Question

A road roller takes 500 complete revolutions to move once over to level a road.
Find the area of the road if the diameter of a road roller is 42 cm and its length is I m.
(use π = 22/7 )​

Answer 1

Answer:

Length of roller = 1m = 100cm

Circumference of roller = π x D = 22/7 X 84 =  264 cm

Length of road = 264 x 750 = 198000 cm  

Width of road = length of roller = 100 cm

Area of road = 198000 x 100 = 19,800,000 cm² or 1980 m²

Answer 2

Answer:

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