Given
Side of square = 14 cm
Diameter of circle inscribed in square = side of square = 14 cm

Thus, radius of circle is r = \(\frac { 14 }{ 2 }\) = 7 cm
The circumference of circle = 2πr
= \(\frac { 2\times 22 }{ 7 } \times 7\) = 44 cm
Thus circumference of inscribed circle = 44 cm