Question

radius of a circular region is 63 cm find the least length of rope which is sufficient to encircle the circular region

Answer 1

It is the circumference of the circle
Therefore, least length is 396cm

Answer 2

Radius= 63cm
Minimum length to encircle the circular region =circumference= 2*pi*radius
=2*3.1415926535*63
=395.84067252cm
~396cm