A wire is in the shape of a square of side 22 cm. If the wire is re-bent into a circle, find its radius. Also find the area of circle.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Given that the side of the square = 22 cm

Length of the wire = perimeter of the square

= 4 x side = 4 x 22 = 88 cm

Since the same wire is used to make the circle, both will have the same perimeter.

So, perimeter of the circle = 88

Thus, radius of circle = 14 cm

Now, area of circle =

Answered by  | 4th Jun, 2014, 03:23: PM