Question

*If we want to prove the following statement referring to the above figure, what would be the antecedent (given part)? 'The measure of an exterior angle of a triangle is equal to the sum of its remote interior angles.'*

1️⃣ ∠ACB and ∠ACD are remote interior angles of △ABC
2️⃣ ∠ACD is the exterior angle of △ABC
3️⃣ Sum of interior angles of △ABC is 180°.t​

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∘

Step-by-step explanation:

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