Princ. A&G Comp, Supp, Vert. Practice

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What are Complementary Angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are Supplementary Angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie on opposite sides of a transversal and inside the two lines.

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in similar positions on two parallel lines cut by a transversal.

Front

What is the Angle Bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

If ∠1 and ∠2 are vertical angles, what can be said about their measures?

Back

The measures of vertical angles are equal.

Front

If two angles are complementary and one angle measures 30°, what is the measure of the other angle?

Back

The other angle measures 60°.

Front

If two angles are supplementary and one angle measures 120°, what is the measure of the other angle?

Back

The other angle measures 60°.

Front

What is an example of a pair of complementary angles?

Back

81° and 9° are complementary angles.