how long will a man takes to make a round of a circular field of radius 21 m cycling at speed 8 km per hour
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Step-by-step explanation:
Radius of circular field=21m
Therefore the perimeter of circular field=2πr
=2*22/7*21
=132m
Speed at which man is cycling around the circular field=8km/h
=8000m/h
Now time taken by the man to cycle around the circular field=132/8000(as Time=Distance/Time)
=0.0165 hours or 0.99minutes or 59.4 seconds
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