7 Lesson 19: Angle Relations and Solving Missing Angles

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

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

Back

60°.

Front

If angle B is 150°, what is the measure of its supplementary angle?

Back

30°.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

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

Back

50°.

Front

If angle 1 and angle 2 are supplementary and angle 1 measures 110°, what is the measure of angle 2?

Back

70°.

Front

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

Back

90°.

Front

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

Back

180°.

Front

If angle C is 90°, what type of angle is it?

Back

Right angle.