Angle Relationships

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 is the value of x if angle A and angle B are complementary and angle A is 30 degrees?

Back

60 degrees.

Front

What is the value of x if angle C and angle D are supplementary and angle C is 110 degrees?

Back

70 degrees.

Front

What is the measure of a right angle?

Back

90 degrees.

Front

What is the measure of a straight angle?

Back

180 degrees.

Front

If two angles are vertical angles, what can be said about their measures?

Back

They are equal.

Front

If angle E is 45 degrees, what is the measure of its complement?

Back

45 degrees.

Front

If angle F is 120 degrees, what is the measure of its supplement?

Back

60 degrees.

Front

What is the relationship between angles formed by two intersecting lines?

Back

They form pairs of vertical angles and adjacent angles.