Geometry Parallel Lines with Transversal

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

Define alternate interior angles.

Back

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

Front

Define alternate exterior angles.

Back

Angles that are on opposite sides of the transversal and outside the two lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on two different lines cut by a transversal.

Front

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

Back

They are equal.

Front

If angle 1 is 110° and is an exterior angle, what is the measure of the corresponding interior angle?

Back

70°.

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

They are equal.

Front

If angle 3 is 40°, what is the measure of angle 5 if they are alternate interior angles?

Back

40°.

Front

What is the sum of the measures of interior angles on the same side of the transversal?

Back

They are supplementary, meaning they add up to 180°.