Answer:
∠ 1 = 23° , ∠ 2 = 157°
Explanation:
∠ 1 and 157° are a linear pair and sum to 180° , that is
∠ 1 + 157° = 180° ( subtract 157° from both sides )
∠ 1 = 23°
∠ 2 and 157° are vertically opposite angles and are congruent , then
∠ 2 = 157°
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