Angle Relationships in Intersecting and Parallel Lines

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Q: If two lines intersect, and one angle measures $50^\circ$, what is the measure of its vertically opposite angle?

$50^\circ$

$180^\circ$

$130^\circ$

$90^\circ$

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Q: Two adjacent angles on a straight line are $x$ and $y$. If $x = 120^\circ$, what is $y$?

$180^\circ$

$90^\circ$

$120^\circ$

$60^\circ$

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Q: Two parallel lines are intersected by a transversal. If one co-interior angle is $110^\circ$, what is the measure of the other co-interior angle?

$110^\circ$

$90^\circ$

$70^\circ$

$180^\circ$

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Q: Two parallel lines are intersected by a transversal. If one alternate angle measures $75^\circ$, what is the measure of the other alternate angle?

$90^\circ$

$75^\circ$

$105^\circ$

$180^\circ$

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Q: Two parallel lines are intersected by a transversal. One angle is $140^\circ$, and what’s its corresponding angle?

$180^\circ$

$140^\circ$

$40^\circ$

$90^\circ$

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Q: Two parallel lines are intersected by a transversal. One angle is $3x^\circ$, and its co-interior angle is $6x^\circ$. What is the larger angle?

$15^\circ$

$135^\circ$

$22.5^\circ$

$120^\circ$

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