Front

What is the slope of parallel lines?

Back

Equal

Front

What is the measure of ∠ABC if it is given as 108°?

Back

108°

Front

What types of angles are 2 and 5 if they are on the same side of the transversal and between the two lines?

Back

Same Side Interior

Front

If x + 80 = 180, solve for x.

Back

100

Front

What type of angles are 1 and 8 if they are on opposite sides of the transversal and outside the two lines?

Back

Alternate Exterior

Front

What is the definition of parallel lines?

Back

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

Front

What is the definition of perpendicular lines?

Back

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

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

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 sum of the interior angles of a triangle?

Back

180 degrees.