Question

A wire made of silver is looped in the form of circular ear ring of radius 5.6 cm. It is rebent into a square form. Determine the length of the side of the square.

Answer 1

Given: Radius of the circle = 5.6cm

So, the circumference of the circle = 2πr

= 2 x 22/7 x 5.6

= 35.2cm

Now,

The perimeter of square = Circumference of a circle

= 35.2cm

Therefore,

Side of a square = The perimeter of a square/4

= 35.2/2

= 8.8cm

Hence, the side of a square = 8.8cm