. 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 the road roller is 84 cm and its length is I m.
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Answered by
4
SO FIRSTLY WE HAVE TO FIND ITS C.S.A MEANS CURVED SURFACE AREA
=2*22/7*42*100
=44*6*100
=264100
LENGTH OF ROAD =26400*750
=19800000 CM=1980M^2
AREA OF ROAD = 1980*1=1980M^2
Answered by
3
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
hope it helps!!!
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