In the figure, $m\angle3 = 75^\circ$ and $m\angle10 = 105^\circ$. Find the measure of $\angle14$.
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Since angle Z and angle O are adjacent angles, we can use the angle addition postulate to find the measure of angle ZO. Angle ZO = angle Z + angle O = 75° + 105° = 180° Since angle ZO is a straight angle, it measures 180°. Now, we can use the fact that Show more…
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