3.1: Properties of Parallel Lines

Question 1

A line that intersects two coplanar lines at two distinct points.

Answer 1

Transversal

Question 2

If a transversal intersects two parallel lines, then alternate interior angles are congruent.

Answer 2

Alternate Interior Angles

Question 3

If a transversal intersects two parallel lines, then corresponding angles are congruent.

Answer 3

Corresponding Angles

Question 4

You can display the steps that prove a theorem.

Answer 4

Two-Column Proof

Question 5

If a transversal intersects two parallel lines, then same-side interior angles are supplementary.

Answer 5

Same-Side Interior Angles

Question 6

If a transversal intersects two parallel lines, then alternate exterior angles are congruent.

Answer 6

Alternate Exterior Angles

Question 7

If a transversal intersects two parallel lines, then same-side exterior angels are supplementary.

Answer 7

Same-Side Exterior Angles

Question 8

Flow Chart

Answer 8

Arrows show the logical connections between the statements.