Parallel Lines & Angles

Front

What are parallel lines?

Back

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

Front

Define alternate interior angles.

Back

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

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 supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

Define vertical angles.

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

If m∠A = 125°, what is the measure of its supplementary angle?

Back

55°.

Front

What is the measure of an angle that is complementary to 65°?

Back

25°.

Front

Name the alternate exterior angle to angle 2.

Back

Angle 7.

Front

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

Back

They are equal.

Front

What is the sum of the measures of angles on a straight line?

Back

180 degrees.