A circular arc of length 11 feet subtends a central angle of 60 degrees. Find the radius of the circle in feet. (Note: You can enter `\pi` as 'pi' in your answer.)
feet
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity