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

What is the relationship between two angles that are vertical?

Back

Vertical angles are equal to each other.

Front

If angle A is 70°, what is the measure of its complementary angle?

Back

20°.

Front

If angle B is 110°, what is the measure of its supplementary angle?

Back

70°.

Front

Find the missing angle if one angle is 60° and they are complementary.

Back

30°.

Front

Find the missing angle if one angle is 120° and they are supplementary.

Back

60°.

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 1 is 45° and angle 2 is its complement, what is angle 2?

Back

45°.