kaushal rolls a wheel along a straight line the wheel covers distance of 19. 8 M and make 21 rotations find radius of the wheel in centimetre
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Answered by
37
hey there !!
given :- no. of rotations = 21 and the distance covered = 19.8m
now ,
no. of rotation = distance covered / circumference of the wheel
21 = 19.8/2πr
2πr = 19.8/21
2×22/7 × r = 19.8/21
r = 19.8/21 × 7/44 = 0.15m
hence radius of the wheel = 0.15m or in centimeters = 0.15 × 1000 = 150cm
hope it helps !!
be brainly♥
given :- no. of rotations = 21 and the distance covered = 19.8m
now ,
no. of rotation = distance covered / circumference of the wheel
21 = 19.8/2πr
2πr = 19.8/21
2×22/7 × r = 19.8/21
r = 19.8/21 × 7/44 = 0.15m
hence radius of the wheel = 0.15m or in centimeters = 0.15 × 1000 = 150cm
hope it helps !!
be brainly♥
Answered by
18
solve it and change into in centimetre
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