A wire is in the form of square with side 11 cm. It is bent to form a circle. What is the radius of the circle?

7 cm

We know that,

Perimeter of square= 4 × side

Circumference of circle= 2πr

We have,

Side of square= 11cm

Perimeter of square= 4 × 11= 44cm

Perimeter of square= Circumference of circle

44 = 2πr

= 44=  2 × \(\frac{22}{7}\) × r

= r = 7cm