Adjacent Angles Definition Two coplanar angles with a common side, a common vertex, and no common interior points. Sketch.

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Presentation transcript:

Adjacent Angles Definition Two coplanar angles with a common side, a common vertex, and no common interior points. Sketch

Vertical Angles Definition Two angles whose sides are opposite rays. Sketch ∠1 and ∠2 ∠AED and ∠BEC C A B D E 2 1

Complementary Angles Definition Two angles whose measures have a sum of 90°. Each angle is called the complement of the other. Sketch

Supplementary Angles Definition Two angles whose measures have a sum of 180°. Each angle is called the supplement of the other. Sketch

Linear Pair Definition A pair of adjacent angles whose noncommon sides are opposite rays. The angles of a linear pair form a straight angle. Sketch