Answers

2016-03-02T15:26:06+05:30
Area = 154m2 = 2πr
154/6.28 = r
24.5 = r
circumference = πr2 = 3.14 * 24.5 * 24.5 = 1884.7
He completes 2 rounds at 
5 km/hr
He completes 3769.4m at 1.3 m/s
Time = distance / speed = 3769.4/1.3 = 2899.5s = 48min
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