After a thorough research, there exists the same question that has the following choices.
A. 6.29 <span>B. 12.57 </span><span>C. 18.86 </span><span>D. 25.13</span>
The correct answer is letter B 12. 57 First, we need to get the circumference C = 2*pi*r C = 12 pi 360/ 60+60 = 360/120 = 3 12 pi / 3 = 4 pi = 4 x 3.1415 = 12.57
