Supplementary
Complementary
Vocabulary
100

Two angles are supplementary. The first has a measure of 121o. What is the measure of the second angle?

59o

100

Two angles are complementary. What is their sum?

90o

100

An angle with a measure greater than 90o.

Obtuse angle

200

Two angles are supplementary. The first angle has a measure of 45o. What is the measure of the second angle?

135o

200

Two angles are complementary. The first angle has a measure of 50o. What is the measure of the second angle?

40o

200

Angles that form a right angle. Their sum is 90o.

Complementary angles

300

Two angles are supplementary. The first angle has a measure of 85o. What is the measure of the second angle?

95o

300

Two angles are complementary. The first angle has a measure of 78o. What is the measure of the second angle?

12o

300

Angles that form a straight line. Their sum is 180o.

Supplementary angles

400

Two angles are supplementary. The first angle has a measure of 3xo. The second angle has a measure of 108o. What is the measure of x?

24o

400

Two angles are complementary. The measure of the first angle is 62o. What is the measure of the second angle?

28o

400

Two angles that have a common side and share a common vertex.

Adjacent angles

500

Two angles are supplementary. The first angle has a measure of 2x + 15o. The second angle has a measure of x + 75o. What is the value of x?

30o

500

Two angles are complementary. The measure of the first angle is 2x + 14o. What is the measure of the second angle?

38o

500

Two angles that have vertices opposite each other. They are created when two lines intersect. These angles are equal in measure.

Vertical angles

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