Question

A copper wire is bent in the form of a
square of side 44 cm. If it is rebent in
the form of a circle, what will be its
radius? (Take n = 22 by 7)

Answer 1

Answer

Side of square = 44cm

Perimeter of square = 4×side

=4×44

= 176 cm

Perimeter of circle = Perimeter of square

= 176cm

Radius of circle = y

Perimeter of circle= 2πr

176 = 2× 22÷7×y

176-2 = 22÷7 ×y

174 = 22÷7×y

174×7upon22 = y

8×7 = y

56 = y

Radius = 56

Answer 2

Length of a square (l)=44cm

Perimeter (p)=4*l

=4*44

=176cm

ATQ,

Perimeter of square =Circumference of circle

So,Circumference =176cm

Or, 2*22/7*r=176

Or44/7*r=176

Or,44r=176*7

Or,r=1232/44

Or,r=28cm

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