Angles: Complementary, Supplementary, and Vertical

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What is the sum of angles in a straight line?

Back

180°.

Front

What is the sum of angles in a right angle?

Back

90°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If one angle is 70°, what is its supplementary angle?

Back

110°.

Front

If one angle is 30°, what is its complementary angle?

Back

60°.

Front

Identify adjacent angles.

Back

Angles that share a common side and vertex.

Front

If two angles are complementary and one angle is 40°, what is the other angle?

Back

50°.

Front

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

Back

60°.