Question

In Figure measure of angle abc is​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

∠ACB+100∘=180∘∠ACB=180∘−100∘=80∘

∠BAC=20∘  (Vertically opposite angle)

So, In triangle ABC, by angle sum property; ∠BAC+∠ACB+∠ABC=180∘

Thus, ∠ABC=180∘−80∘−20∘=80∘