Find the Given Trigonometric Function of the Indicated Angle Using $$x = 23 , y = 32 , z = 46$$

Find the given trigonometric function of the indicated angle using triangle RAW. cos W, where $$x = 23 , y = 32 , z = 46$$

A) $\frac { 23 } { 32 }$
B) $\frac { 23 } { 12 }$
C) $\frac { 1 } { 2 }$
D) $\frac { 23 } { 16 }$
E) $\frac { 16 } { 23 }$