Question

solve the following
IA LACD is exterior angle of triangle
ABC.LA and LB are equal in
measures .If mLACD = 170° then find
the measure of a LA and LB.
Hoe
D D​

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

same as your ques little difference

see the example and slove your question

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