A. B. AB ≅ AC C. D. CS ≅ ST
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The sum of the measures of two complementary angles is 90°. To put it another way, m∠P + m∠Q = 90°.
So, we can substitute the given values of the angles into this equation.
Then, to find m∠Q, we plug in 12 for x for the original expression of Q to get
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So, we can substitute the given values of the angles into this equation.
Then, to find m∠Q, we plug in 12 for x for the original expression of Q to get
