Question

A copper wire is in the form of a circle with radius 35 cm. It is bent into a square. Determine the side of the square.

Answer 1

Radius of a circle, r = 35 cm.
Since the same wire is bent into the form of a square,
Perimeter of the circle = Perimeter of the square
Perimeter of the circle = $2\pi r$ units
$=2\times \frac{22}{7}\times 35cm$
$P=220cm$
Let 'a' be the side of a square.
Perimeter of a square = 4a units
4a = 220
a = 55 cm
$\therefore$ Side of the square = 55 cm.