the area of a square field is 17956 sq m. a man cycles along boundary at the speed of 18 km /hr. In how much time will he return to starting point if he takes 4 rounds
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area of sq field = 17956 sq m
a^2. =17956
a= 134 m
total distance covers in 4 round =4×perimeter
=. 4*4*side
=16*134 m =2144 m
speed =18km/h. =18×5/18 = 5m/sec
time = distance/speed
= 2144/5 =428.8 sec = 7min 8.8 sec
a^2. =17956
a= 134 m
total distance covers in 4 round =4×perimeter
=. 4*4*side
=16*134 m =2144 m
speed =18km/h. =18×5/18 = 5m/sec
time = distance/speed
= 2144/5 =428.8 sec = 7min 8.8 sec
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