Mid-Chapter Check
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Complementary angles meet a condition about the sum of their measures.
Definition: Two angles are complementary when the sum of their measures is equal to 90^(∘).
Example angles: a 30^(∘) angle and a 60^(∘) angle.
Two angles are complementary when the sum of their measures is equal to 90^(∘). As an example, we can consider ∠ 1 and ∠ 2 such that m∠ 1 = 30^(∘) and m∠ 2 = 60^(∘).