Adjacent, Vertical,
Supplementary, and Complementary Angles
Adjacent angles are “side by side” and share a common ray.
45º15º
These are examples of adjacent angles.
55º
35º
50º130º
80º 45º
85º20º
These angles are NOT adjacent.
45º55º
50º100º
35º
35º
When 2 lines intersect, they make vertical angles.
75º
75º
105º105º
Vertical angles are opposite one another.
75º
75º
105º105º
Vertical angles are opposite one another.
75º
75º
105º105º
Vertical angles are congruent (equal).
30º150º
150º30º
Supplementary angles add up to 180º.
60º120º
40º
140º
Adjacent and Supplementary Angles
Supplementary Anglesbut not Adjacent
Complementary angles add up to 90º.
60º
30º40º
50º
Adjacent and Complementary Angles
Complementary Anglesbut not Adjacent
Directions: Identify each pair of angles as
vertical, supplementary, complementary,
or none of the above.
Directions:Determine the missing angle.