Find the Exact Value of the Given Trigonometric Function of the Angle

Multiple Choice

Find the exact value of the given trigonometric function of the angle $\theta$ shown in the figure. (Use the Pythagorean Theorem to find the third side of the triangle.)
Find: $\sin \theta$

A) $8 \sqrt { 2 }$
B) $\sqrt { 2 }$
C) $\frac { \sqrt { 2 } } { 2 }$
D) 1
E) $\frac { \sqrt { 2 } } { 8 }$