Question

A wire is bent to form a square of side 22 cm. If the wire is rebent to form a circle, its radius is:
(A) 22 cm
(B) 14 cm
(C) 11 cm
(D) 7 cm​

Answer 1

Answer:

As we know that radius is half of diameter

Side of square given = 22cm

Hence

22/2 = 11cm

Answer 2

parameter of square = Circumference

4side = 2 pi r

4 × 22 = 2 × 22/7 × r

88/22 × 7 = 2r

4 × 7 = 2r

r = 28/2 = 14

r = 14 is radius of the cycle