Question

A wire is in the form of sqaure of 66cm . determine the radius of the circle into which it can be bent

Answer 1

Length of wire = 4a

= 4 × 66 cm

= 264 cm

Circumference of circle = Length of wire

2 π r = 264 cm

r = (264 cm) / (2 π)

= 42 cm [Take π = 22/7]

Radius of circle is 42 cm