Parallel Lines and Transversals

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Front

What is a transversal?

Back

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

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines cut by a transversal and are equal.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines; they are equal.

Front

What are same-side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines; they are supplementary.

Front

What is the sum of the angles on a straight line?

Back

180 degrees.

Front

If two parallel lines are cut by a transversal, what can be said about the alternate exterior angles?

Back

They are equal.

Front

If angle A and angle B are same-side interior angles, what is their relationship?

Back

They are supplementary, meaning their sum is 180 degrees.

Front

Solve for x: If angle 1 = 3x + 12 and angle 2 = 5x - 8 are corresponding angles, what is x?

Back

x = 4.

Front

Find the measure of angle 3 if angle 3 and angle 4 are alternate interior angles and angle 4 = 48 degrees.

Back

Angle 3 = 48 degrees.