Question

the area of a square field is 63504 m square . How much time will a man take to complete one round along its boundary, if he cxcle at a constant speed of 26.88 km!h?

Answer 1

Area of square = 4×side²

63504 = side²4

side² = 63504/4

side = √15876

side = 126 m

Length of the boundary = 4 × Side

=> 4 × 126

Total length = 504m

Time taken = D/s

=> 126/7.467

=> 16.87 seconds