805 Complimentary and Supplementary 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 is the relationship between two angles that are complementary?

Back

Their measures sum to 90 degrees.

Front

What is the relationship between two angles that are supplementary?

Back

Their measures sum to 180 degrees.

Front

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

Back

60 degrees.

Front

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

Back

60 degrees.

Front

What is the definition of vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

If angle A is 45 degrees, what is the measure of angle B if A and B are complementary?

Back

45 degrees.

Front

If angle C is 75 degrees, what is the measure of angle D if C and D are supplementary?

Back

105 degrees.

Front

How can you determine if two angles are complementary using a protractor?

Back

Measure both angles and check if their sum is 90 degrees.