Unit 3 - Parallel lines and Perpendicular Lines

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

Do parallel lines have the same slope?

Back

True.

Front

What are skew lines?

Back

Lines that do not intersect and are not parallel.

Front

What is the relationship of vertical angles?

Back

Vertical angles are equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines.

Front

What is the sum of the interior angles of a triangle?

Back

180°.

Front

What is the definition of parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What is the definition of perpendicular lines?

Back

Lines that intersect at a right angle (90°).

Front

What are alternate interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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