Angles formed by parallel lines cut by a transversal

Front

What is a transversal?

Back

A transversal is a line that intersects two or more lines at different points.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of the transversal and inside the two parallel lines.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that are on opposite sides of the transversal and outside the two parallel lines.

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that are on the same side of the transversal and inside the two parallel lines.

Front

If two parallel lines are cut by a transversal, what is true about corresponding angles?

Back

Corresponding angles are equal.

Front

If two parallel lines are cut by a transversal, what is true about alternate interior angles?

Back

Alternate interior angles are equal.

Front

If two parallel lines are cut by a transversal, what is true about consecutive interior angles?

Back

Consecutive interior angles are supplementary (add up to 180 degrees).

Front

Solve for x: If ∠A = 2x and ∠B = 3x, and ∠A + ∠B = 180°, what is x?

Back

x = 36°.

Front

Which pair of angles are supplementary?

Back

Two angles that add up to 180 degrees.