What is the central angle of the sector if the radius of the circle is [[$ 11.0 $]] m and the length of sector's arc is

a) [[$ 11\pi $]]



Answer: The central angle is [[$ ° $]].

b) [[$ \displaystyle\frac {11\pi} {2} $]]



Answer: The central angle is [[$ ° $]].

c) [[$ \displaystyle\frac {11\pi} {6} $]]



Answer: The central angle is [[$ ° $]].