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Evaluating Trigonometric Functions of $$30 ^ { \circ } , 45 ^ { \circ }$$ , and $$60 ^ { \circ }$$ In Exercises $$23 - 28$$ , construct an appropriate triangle to find the missing values. $$( 0 ^ { \circ } \leq \theta \leq 90 ^ { \circ } , 0 \leq \theta \leq \pi / 2 )$$
45$$°$$
$$\sqrt{2}$$