Define 'transversal' in the context of parallel lines.

A transversal is a line that intersects two or more parallel lines.

Explain the relationship between linear pairs when parallel lines are cut by a transversal.

Linear pairs are supplementary, meaning they add up to 180 degrees.

Congruent angles have the same measure.

Grade 10th Grade · Math · 45 min

I can identify angle relationships formed when parallel lines are cut by a transversal.

Mashup Math · 9:35

Parallel Lines Cut by a Transversal & Angle Relationships!

3 key concepts

1
When parallel lines are cut by a transversal, the corresponding angles are congruent.
2
Angles that are linear pairs are supplementary, meaning that they have a sum of 180 degrees.
3
Using the X's and O's mindset, all angles labeled with an X are congruent to each other, and all angles labeled with an O are congruent to each other.

8 questions · Multiple choice & Short answer

Quick comprehension check

“Two parallel lines are intersected by a transversal. One of the acute angles formed measures 55°. What is the measure of its corresponding angle?”

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