A Point on the Terminal Side of Angle θ Is $\left( - \frac { 1 } { 5 } , \frac { 1 } { 2 } \right)$

Multiple Choice

A point on the terminal side of angle θ is given. Find the exact value of the indicated trigonometric function of θ.
- $\left( - \frac { 1 } { 5 } , \frac { 1 } { 2 } \right)$ Find $\cos \theta$ .

A) $- \frac { 2 \sqrt { 29 } } { 29 }$
B) $\frac { 5 \sqrt { 29 } } { 29 }$
C) $- \frac { 29 } { 5 }$
D) $\frac { 29 } { 2 }$