Question

draw ∆ABC and form an exterior ∆ACD . Now take a protractor and measure ∆ACD,∆Aand ∆ B.
Find the sum ∆ACD and compare it with the measure ∆ACD.
Do you observe that ∆ACD is equal (or nearly equal) to ∆A+∆B?
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Answer 1

Answer:

MATHS

∠ACD is an exterior angle of ΔABC the measure of ∠A and ∠B are equal. If ∠ACD=140

∘

, find the measure of the angles ∠A and ∠B

Medium