Suppose That the Length of a Radius of a Circle $\pi$

Suppose that the length of a radius of a circle is the same as the length of a side of a square. If the circumference of the circle is 9.12 centimeters longer than the perimeter of the square, find the length of a radius of the circle. (Use 3.14 as an approximation for $\pi$ .) __________ centimeters