Given, side of a square = 22 cm
Perimeter of square and circumference of circle are equal, because the wire has same length.
According to the question,
Perimeter of square = Circumference of circle
⇒4×(Side)=2×π×r
⇒4×22=2×227×r [∵π=227]
⇒r=4×22×72×22
⇒r=14cm
Hence, the radius is 14 cm.