Question

a wire is in the form of a circle with radius 42cm it is bent into a square find the side of a square

Answer 1

radius=42
perimeter=2πr=264 cm
then perimeter of square=264
4s=264
s=66
side=66cm

Answer 2

hello users  
solution
Given that
wire in the form of a circle with radius 42 cm bent to form  a square.

=> perimeter of circle = perimeter of square 

we know that 
perimeter of circle = 2πr 
and
perimeter of square = 4 a 

where, r is the radius and a is the side of square.

=> perimeter of circle = 2πr 
= 2 * 22/7 * 42 
= 44 * 6
= 4* 66 

Now,
According to question
perimeter of square = 4a = 4 * 66

=> a = 66 cm Answer 

# hope it helps :)