Interior angles on the same side of the transversal between parallel lines are called what?

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Multiple Choice

Interior angles on the same side of the transversal between parallel lines are called what?

Explanation:
When a transversal crosses two parallel lines, the angles inside the two lines can be paired in different ways. The interior angles on the same side of the transversal are called co-interior angles (also called same-side interior angles). A key property is that they add up to 180 degrees, so they are supplementary. This distinguishes them from alternate interior angles, which are on opposite sides and equal, and from corresponding angles, which are in matching positions at the intersections and also equal.

When a transversal crosses two parallel lines, the angles inside the two lines can be paired in different ways. The interior angles on the same side of the transversal are called co-interior angles (also called same-side interior angles). A key property is that they add up to 180 degrees, so they are supplementary. This distinguishes them from alternate interior angles, which are on opposite sides and equal, and from corresponding angles, which are in matching positions at the intersections and also equal.

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