a road roller of radius 7cm and length 20cm performs 20 rotations in a minute then, the
distance covered by it one minute is
Answers
Answered by
5
Answer:
distance covered= perimeter×20
perimeter= 2πr= 2×22/7×7= 44cm
distance = 44×20=880cm = 8m 80cm
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Answered by
3
Answer:
Radius of the roller :- 1.75
explanation:
Roller make 200 rotation to cover a distance = 2200m
2×22/7×r ×200 = 2200
r = 2200×1/2×7/22×1/200
r= 1100×1/200×7/22
r= 11/2×7/22
r= 7/4 = 1.75
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