how long will a girl take a walk around the boundary of a square field of area 9 hectares at the rate of 6 km/hr. (1hectares = 10sq.m
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area =9 hectare
1hectare is equal to 1000sqm
hence 9hectare is equal to 90000sqm
area of square = side *side
9000=side*side
94.86=side
1hectare is equal to 1000sqm
hence 9hectare is equal to 90000sqm
area of square = side *side
9000=side*side
94.86=side
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