Question

7. The length of the nepe by which a cow must be tethered as toman area of 9856 m2

56 m
64 m
88 m
168 m​

Answer 1

Answer:

A. 56m

Step-by-step explanation:

Clearly the cow will graze a circular field of area 9856 sq m and

radius equal to the length of the rope.

Let the length of the rope be r meters.

Then, πr2=9856

r2=229856×7=3136m2

r=56

Answer 2

Answer:

56m

Step-by-step explanation:

May be this answer help you