5.0 Adjacent, Vertical, Complementary, Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

What is the sum of the angles in a triangle?

Back

180 degrees.

Front

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

Back

60 degrees.

Front

If two angles are supplementary and one angle is 110 degrees, what is the other angle?

Back

70 degrees.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex.

Front

If two angles are vertical, what can we say about their measures?

Back

They are equal.

Front

What is an example of a pair of complementary angles?

Back

30° and 60°.

Front

What is an example of a pair of supplementary angles?

Back

100° and 80°.