Answer:
The length of the rope is 132m
Step-by-step explanation:
Given
[tex]r = 21m[/tex] -- radius
Required
Determine the length of the rope
To do this ,we simply calculate the circumference (C) of the fence
[tex]C = 2\pi r[/tex]
[tex]C = 2 * \frac{22}{7} * 21m[/tex]
[tex]C = 2 * 22 * 3m[/tex]
[tex]C = 132m[/tex]
The length of the rope is 132m