Question

Find the length of a rope by which a cow must be tethered in order that it may be able to garze an area 9856cm^2​

Answer 1

Clearly, the cow will graze a circular field of area 9856 sq. metres and radius equal to the length of the rope. Let the length of the rope be R metres.

Clearly, the cow will graze a circular field of area 9856 sq. metres and radius equal to the length of the rope. Let the length of the rope be R metres. Then, π(R)2 = (9856 X (7/22)) = 3136

Radius = 56m.

So, Length of the rope = 56 m.

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