A road roller takes 750 complete revolution to move once over to level a road . Find the area of the road if the diameter of the road roller us 84 cm and it's length is 1 m
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Answer:
49500 cm or 495 m
Step-by-step explanation:
Diameter = 84 cm
Radius = (84/2) cm
= 42 cm
Circumfrence = 2πr units
= (2*22/7*42) cm
= 66 cm
No. of revolutions completed = 750
Length of the road = no. of revolutions taken* circumfrence units
= (750*66) cm
= 49500 cm
= 495 m
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