Question

8. ACD is an exterior angle of ABC. If ACD = 122and A = 68, then B = _______ .​

Answer 1

Answer⤵️⤵️

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

Hence, In this case ∠A and ∠B

So,

∠A+∠B=140

∘

as ∠A=∠B

or,2∠A=140

∘

∠A=∠B=70

∘

Answer 2

Answer:

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