How long will a man take to make a round of a circular field of radius 21 m.Cycling at a speed of 8km/h
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he will take 55.4 seconds
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Answer:
distance he can travel will be the circumference of a circle=2*pi*r
pi=22/7
circumference=2*22/7*21=2*22*3=132
given speed=8kmph=8*5/18 mps=20/9mps
time=distance/speed=132*9/20=59.4s
Step-by-step explanation:
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