Question

in figure AB|| DC. if angle A = 50°, then the measure of angle ABC​

Answer 1

Answer:

70°

Step-by-step explanation:

In △ABD, ∠ABD + ∠ADB + ∠DAB = 180° [angle sum property of △]

50° + ∠ADB + 60° = 180°

⇒ ∠ADB = 70°

Now, ∠ACB = ∠ADB = 70° [∵ angle in same segment]