Identify 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

If angle A is 30 degrees, what is the measure of its complementary angle?

Back

60 degrees.

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees.

Front

What is the relationship between angles 3 and 5 if they are supplementary?

Back

Their measures add up to 180 degrees.

Front

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

Back

They are equal.

Front

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

Back

90 degrees.

Front

If angle 2 measures 45 degrees, what is the measure of its vertical angle?

Back

45 degrees.

Front

What type of angles are formed when two lines intersect?

Back

Vertical angles and adjacent angles.