Geometry - Unit 3 Review: Parallel, Perpendicular, Transversal

Front

What are parallel lines?

Back

Lines that never intersect and have the same slope.

Front

What are perpendicular lines?

Back

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

Front

What is a transversal?

Back

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

Front

What is the slope of a line?

Back

The ratio of the rise (vertical change) to the run (horizontal change) between two points on the line.

Front

What are corresponding angles?

Back

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

Front

What are alternate interior angles?

Back

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

Front

What are consecutive interior angles?

Back

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

Front

What are alternate exterior angles?

Back

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

Front

If two lines are parallel, what can be said about their corresponding angles?

Back

Corresponding angles are congruent.

Front

If two lines are perpendicular, what can be said about their slopes?

Back

The product of their slopes is -1.