Mathematics In a quadrilateral ABCD,∠A+∠C=180°, then ∠B+∠D =

$In a quadrilateral ABCD, ∠ A + ∠ C = 180 °, then ∠ B + ∠ D =$

Give

$A B C D$

is a quadrilateral

$∠ A + ∠ C = 180 °$

$∠ A + ∠ C + ∠ B + ∠ D = 360 °$

$∠ B + ∠ D = 360 ° − 180 °$

$∠ B + ∠ D = 180 °$

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