Complementary, Supplementary, Vertical and Adjacent Angles
vertical angles
A pair of "opposite" angles that form when two lines intersect.
Supplementary angles
A pair of angles that add up to 180 degrees.
Complementary angles
A pair of angles that add up to 90 degrees.
The angles MUST add up to 180
A straight line means:
Straight angle
An angle that is 180 degrees
Right angle
An angle that is 90 degrees
Obtuse angle
An angle that is greater than 90 degrees but less than 180 degrees
Acute angle
An angle that is less than 90 degrees
C = 15⁰ and S = 105⁰
What is the complement and supplement of an angle that measures 75⁰?
48⁰
What is the complement of an angle that measures 42⁰?
62
What is the measure of angle b?
85⁰
What is the supplement of an angle that measures 95⁰?
35
If the measure of Angle 1 is 145 then Angle 2 is ? degrees
50
If the measure of Angle 7 is 50 then Angle 6 is ? degrees
105
If the measure of Angle 1 is 105 then Angle 4 is ? degrees
34
If the measure of Angle 2 is 34 then Angle 3 is ? degrees
60
If the measure of Angle 2 is 60 then Angle 3 is ? degrees
110
If the measure of Angle 2 is 70 then Angle 4 is ? degrees
45
If the measure of Angle 3 is 45 then Angle 2 is ? degrees
120
If the measure of Angle 4 is 120 then Angle 1 is ? degrees
130
If the measure of Angle 5 is 130 then Angle 8 is ? degrees
135
If the measure of Angle 5 is 135 then Angle 8 is ? degrees
Congruent
Same size, same shape. Equal in measure.
12
Solve for x.
30
Solve for x.
Vertical angles are ALWAYS
Congruent
C = 67⁰ and S = 157⁰
Find the complement and supplement of the angle that measures 23⁰.
C = 35⁰ and S = 125⁰
Find the complement and supplement of the angle that measures 55⁰.
C = 24⁰ and S = 114⁰
Find the complement and supplement of the angle that measures 66⁰.
C = 5⁰ and S = 95⁰
Find the complement and supplement of the angle that measures 85⁰.
46⁰
Find the complement of the angle that measures 44⁰.
65⁰
Find the complementary angle of an angle with measure 25⁰.
61⁰
Find the complementary angle of an angle with measure of 29⁰.
56⁰
Find the supplement of the angle that measures 124⁰.
81⁰
Find the supplementary angle of the given angle whose measure is 99⁰.
37.5
If A is 37.5 degrees, what is b?
Adjacent Angles
two angles that share a side; two angles that are 'beside' each other.