The length of a rope by which a cow must be tethered in order that she may be a

Question

The length of a rope by which a cow must be tethered in order that she may be able to graze an area of 9856 sq.m is:

Options:

A . 56m

B . 64m

C . 88m

D . 168m

Answer: Option A

22/7 x r² = 9856
R²= (7/22Ã—9856)
r = 56 m

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