The area of a square field is 75,625 sq. m. A man cycles along its boundary at 20
km/h. In how much time will he return to the starting point ?
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Area of square= length×length
=75626
length=275
perimeter=4× length
=4×275=1100m=1.1km
speed= 20kmph
time= distance/speed= 1.1/20hr=0.055 hours
=198 second
prabhjot8771:
thanks
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