In the diagram below, $\angle BAC=24^\circ$ and $AB=AC$. If $\angle ABC=y^\circ$, what is the value of $y$? In the diagram below, $\angle BAC=24^\circ$ and $AB=AC$. If $\angle ABC=y^\circ$, what is the value of $y$?
Triangle ABC is isoceles with AB = AC
So y = [ 180 - 24 ] / 2 = 78°
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