Question

Two angles of a quadrilateral are 690 and 1230 and the remaining two angles

are equal. Find the measure of each of the equal angles.​

Answer 1

Step-by-step explanation:

•A and B be x,(Given two angles are same)

A and B be x,(Given two angles are same)C=70 ∘and D=130 ∘

A and B be x,(Given two angles are same)C=70 ∘and D=130 ∘ ∠A + ∠B + ∠C + ∠D = 360 ∘ (Sum of all the angles of a quadrilateral is 360o )x+x+70 ∘+130 ∘ =360 ∘

2x=360 ∘ −200 ∘ 2x=160x = 2160 ∘= 80 ∘A=80 ∘and B=80°