prove that an exterior angleof a triangle ia equal to sum of two remote interior angle
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Answer:
to prove
Step-by-step explanation:
△ABC
with exterior angle
∠ACD
Given
2.
m∠A+m∠B+m∠ACB=180∘
Triangle Sum Theorem
3.
m∠ACB+m∠ACD=180∘
Linear Pair Postulate
4.
m∠A+m∠B+m∠ACB=m∠ACB+m∠ACD
Transitive PoE
5.
m∠A+m∠B=m∠ACD
hope it will help you and sorry I don't have diagram I have learned it in 9 th std
and. plz give thanks
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