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25 votes
25 votes
In the diagram of triangle ABC below, AB = AC. Themeasure of ZB is 40°.What is the measure of ZA?

User Noah Witherspoon
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1 Answer

11 votes
11 votes

we have AB=AC, therefore the measure of
\angle B=40^(\circ)=\angle Cthen

the sum of the angles of a triangle is 180°,


\begin{gathered} \angle A=180-\angle B-\angle C \\ \angle A=180-40-40 \\ \angle A=100 \end{gathered}

the measure of

User Maran Manisekar
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