Question

One twelfth of the circle is 30 degrees. how many radians is one twelfth of the circle

Answer 1

$30^o=\frac{30}{180}\pi\ rad=\frac{1}{6}\pi\ rad=\frac{\pi}{6}\ rad$

Answer 2

A circle has a total of 2π radians, so 1/12 of that is 2π/12, or π/6 radians