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The diameter of a circular field is 98m if a child walks at the rate of 14m per minute how long wilit take for her to walk round the field once i



       diameter = 98m
       than radius will be 49m
       speed = 14m per minute
prove = time taken to walk round the field once.
proof = circumference of a circle = 2*  \pi *r
                                                     = 2*22/78*49
                                                     = 308m²
       speed= distance/time
       14 = 308/t
        14t =308
       t =308/14
       t = 22 minute
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