The measure of angle 3 is $130^\circ$ and the measure of angle 4 is $50^\circ$. State two different relationships that can be used to prove $m\angle 1 = 130^\circ$. $\angle 1$ and $\angle 4$ are (select) angles, $\angle 1$ and $\angle 3$ are (select) angles.
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First, we know that angle 3 measures 130° and angle 4 measures 50°. Show more…
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