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$If ΔABC ~ ΔPQR and m ∠ A = 50 °, then m ∠ Q + m ∠ R =$

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$130 °$

$50 °$

$80 °$

$140 °$

answer is A.

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Detailed Solution

$∠ A + ∠ B + ∠ C = 180 °$

$50 + ∠ B + ∠ C = 180 °$

$∠ B + ∠ C = 130 °$

$∠ Q + ∠ R = 130 °$

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