Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 m².
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Question

Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 m2.

KnowledgeBoat · Accepted Answer

Given, Grazed area = 9856 m2 Radius of circular field = Length of the rope A cow tethered to a fixed point by a rope will graze in a circular pattern. Area of circle = πr2 ⇒ 9856 = × r2 ⇒ r2 = ⇒ r2 = ⇒ r2 = 3136 ⇒ r = = 56 m. Hence, length of the rope = 56 m.

Mathematics

Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 m².

Mensuration

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