Geometry/Chapter 13

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Complementary angles are angles that share the same vertex and are equal to 90º.

| / | 45º / | / | / 45º |__/ |/_|_______________


Supplementary angles are angles that share the same vertex and are equal to 180º.



90º                    ___|__               90º

_________________|__|__|____________________



[edit] Vertical Angles

Vertical Angles.jpg

In the above diagram, A and C are vertical angles, and B and D are vertical angles. Vertical angles are congruent.

[edit] Exercises

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