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Guest Oct 10, 2015

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+130544

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m<ADB = 48

And by the Exterior Angle Theorem :

110 = m<BAC + m<CAD + m< ADB .........and we have

110 = m<BAC + 27 + 48 simplify

110 = m<BAC + 75 subtract 75 from both sides

110 - 75 = M<BAC = 35°

:

CPhill Oct 10, 2015

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