Front

What are alternate angles?

Back

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

Front

What are alternate interior angles?

Back

A pair of angles that lie between two parallel lines and on opposite sides of a transversal.

Front

What are alternate exterior angles?

Back

A pair of angles that lie outside two parallel lines and on opposite sides of a transversal.

Front

What is a transversal?

Back

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

Front

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

Back

They are equal.

Front

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

Back

They are equal.

Front

What is the definition of collinear points?

Back

Points that lie on the same straight line.

Front

What are complementary angles?

Back

A pair of angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

A pair of angles that add up to 180 degrees.

Front

If m∠1 = 67°, what is m∠2 if ∠1 and ∠2 are supplementary?

Back

m∠2 = 113°.