Question

If < ACD is an exterior angle of triangle ABC
< ACD = 110°,measure of <A​

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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Answer 2

here to you go

hope the explanation is clear and it helps you .