Question

In a quadrilateral ABCD, the bisectors of ∠ and ∠ meet at O. If ∠ = 70° and ∠ = 130°, then find measure of ∠.​

Answer 1

Answer:

In quad ABCD

We know,

Angle A+B+C+D = 360°

Angle C+D = 360-130-70=160

½ (C+D) = 80

NOW

½C + ½D + COD = 180

80 + COD = 180

COD = 100°. Ans