In quadrilateral ABCD, ∠C = 72° and ∠D = 28°. The bisectors of ∠A and ∠B meet in O. What is the measure of ∠AOB?

In quadrilateral ABCD, ∠C = 72° and ∠D = 28°. The bisectors of �

1.	In quadrilateral ABCD, ∠C = 72° and ∠D = 28°. The bisectors of ∠A and ∠B meet in O. What is the measure of ∠AOB?
A.	50°
B.	36°
C.	48°
D.	54°
Answer» B. 36°

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In quadrilateral ABCD, ∠C = 72° and ∠D = 28°. The bisectors of ∠A and ∠B meet in O. What is the measure of ∠AOB?

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