A Point on the Terminal Side of Angle θ Is $( 9,12 )$

Multiple Choice

A point on the terminal side of angle θ is given. Find the exact value of the indicated trigonometric function of θ.
- $( 9,12 )$ Find $\cos \theta$ .

A) $\frac { 3 } { 5 }$
B) $\frac { 4 } { 5 }$
C) $\frac { 3 } { 4 }$
D) $\frac { 4 } { 3 }$