Find the Measure of the Central Angle $\theta$ In a Circle of Radius 13 Ft If the Angle

Multiple Choice

Find the measure of the central angle $\theta$ in a circle of radius 13 ft if the angle is subtended by an arc of length 7 ft

A) $\frac { 7 } { 13 }$

B) $\frac { 7 \pi } { 13 }$

C) $\frac { 7 } { 13 \pi }$

D) $\frac { \pi } { 13 }$

E) $\frac { 13 \pi } { 7 }$