Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator.

\( \sec ( \frac { \pi } { 4 } ) \)

Question

Use the given triangles to evaluate the following expression. If necessary, express the value without a square root in the denominator by rationalizing the denominator.

\( \sec ( \frac { \pi } { 4 } ) \)

Answer

\(\sec ( \frac { \pi } { 4} ) = \sqrt { 2} \)