The area of square field is 63504 metre square . How much time will a man take to complete one round along it's boundary ,if he cycles at a constant speed of 26.88 km/ h?
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Answer:
Area of square = 63504m²
=side²=63504m²
=side=√63504m²
=side=252m
Perimeter of square=4×side
=4×252m
=1008m
Now, speed =26.88km/h
=distance/time= 26.88km/h
=1008m/time=26880m/60×60s
=time=1008m×60×60s/26880m
=time= 3,628,800 s/26880
=time=135 seconds
or time=2.25 minutes
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