Question

Radius of a circular region is 63cm. Find the least length of the rope which is Sufficient to encircle the circular region ​

Answer 1

The length of a rope when it is wound around the circular region will be the circumference of the circle. The least amount will be the perimeter of the circle.

Radius = R = 63 cm

The circumference = 2 π R = 2 * 22 /7 * 63 cm

= 396 cm

Hope this helpful

Answer 2

Answer:

radius of a circle (r) = 63 CM

we have to find the least length of rope to encircle the circular region.

that's why we will use 2πr

2πr = 2*22/7*63

= 396 CM

so, the least length of the rope should be 396cm