Vocabulary
Complementary and Supplementary
Angle Pairs
Vertical
Angle Names
100
What is another name for a 90 degree angle?
Right Angle
100
What is the complementary angle of 25 degrees?
65 degrees 90 - 25 = 65
100
What is the complementary angle of 14 degrees?
76 degrees 90 - 14 = 76
100

Angle a and angle b are vertical angles. Angle a measures 30 degrees. What is the measure of angle b?

30 degrees

100

An angle measures greater than 0 but less than 90 degrees

Acute


200
Two angles whose measures have a sum of 90 degrees.
Complementary
200
What is the complementary angle of 49 degrees?
41 degrees 90 - 49 = 41
200

Angle a and b are complementary angles. Angle a measures 40 degrees. What is the measurement of angle b?

50 degrees

200

Angle c and angle d are vertical angles. Angle c measures 72 degrees. What is the measure of angle d?

72 degrees

200

An angle measures 90 degrees

Right angle

300
What is the definition of supplementary?
Two angles whose measure have a sum of 180 degrees
300
What is the supplementary angle of 103 degrees?
77 degrees 180 - 103 = 77
300
What is the supplementary angle of 144 degrees?
36 degrees 180 - 144 = 36
300

Angle x and angle y are vertical angles. Angle y measures 149 degrees. What is the measure of angle x?

149 degrees

300

An angle measures greater than 90 degrees, but less than 180 degrees

Obtuse 

400

What is an acute angle?

An angle less than 90 degrees

400
What is the supplementary angle of 13 degrees?
167 degrees 180 - 13 = 167
400

Angle a and b are supplementary angles. Angle a measures 40 degrees. Angle b measures (2x+10) degrees. What is the value of x? 

Hint: Use the equation

40 + 2x+10 = 180

65 

400

Angles a and c are vertical angles. Angle a measures 42 degrees. What is the supplement of Angle c?

138 degrees

400

An angle measures 180 degrees

Straight Angle
500

Angles which are opposite and equal in measure are called?

Vertical Angles

500
What is the complementary angle of 37 degrees
53 degrees
500

Angle a and b are vertical angles. Angle a measures 60 degrees. Angle b measures (3x) degrees. What is the value of x? 

Hint: Use the equation

60=3x

20

500

Angles a and b are vertical angles. Angle a measures 171 degrees. What is the supplement of angle b?

9 degrees

500
A 179.99999 degree angle

Obtuse

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