Question

A wire is bent in the form of a square of side 16.5 cm it is our straightened and then went into a circle. what is the radius of the circle so formed?

Answer 1

The perimeter of square and the circumference of the circle will be equal.
Perimeter of Square = 4*Side = 4*16.5 = 66cm
Circumference of Circle = 2*$\pi$*Radius
2*$\pi$*Radius = 66
Radius = 10.5 cm

Answer 2

Answer:

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The perimeter of square and the circumference of the circle will be equal.

Perimeter of Square = 4*Side = 4*16.5 = 66cm

Circumference of Circle = 2*\piπ *Radius

2*\piπ *Radius = 66

Radius = 10.5 cm