Find the Exact Value $\tan 45 ^ { \circ }$ A) $\sqrt { 2 }$

Multiple Choice

Find the exact value. Do not use a calculator.
- $\tan 45 ^ { \circ }$

A) $\sqrt { 2 }$
B) $\frac { \sqrt { 2 } } { 2 }$
C) 1
D) $\frac { \sqrt { 3 } } { 2 }$