G: What type of angle relationship is it?

Front

What is a complementary angle?

Back

Two angles that add up to 90 degrees.

Front

What is a linear pair of angles?

Back

Two adjacent angles that form a straight line, adding 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 does it mean for angles to be adjacent?

Back

Two angles that share a common side and a common vertex.

Front

What is the relationship between complementary angles?

Back

If one angle measures 30 degrees, the other must measure 60 degrees to be complementary.

Front

If two angles are a linear pair, what is their sum?

Back

Their sum is 180 degrees.

Front

How do you find the supplementary angle of a given angle?

Back

Subtract the given angle from 180 degrees.

Front

What is the supplementary angle of 69 degrees?

Back

111 degrees.

Front

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

Back

They are equal in measure.

Front

What is the sum of the measures of two complementary angles?

Back

90 degrees.