An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest circle that could fit in the square as, shown below.
What is the circumference of the copper circle? Use 3.14 to represent pi.
A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches
![An artist used silver wire to make a square that has a perimeter of 40 inches She then used copper wire to make the largest circle that could fit in the square class=](https://us-static.z-dn.net/files/d95/0bf9c630b49715e7aa4a828fd526c614.png)