Supplementary angles
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A pair of angles are supplementary if their respective measures sum to 180 degrees.
If the two supplementary angles are adjacent (i.e. have a common vertex and share a side, but do not have any interior points in common) their non-shared sides form a line.
[edit] See also
[edit] External links
- Animated demonstration - Interactive applet and explanation of the characteristics of supplementary angles.
- Supplementary Angles from Math Is Fun
- Angle definition pages with interactive applets that are also useful in a classroom setting. Math Open Reference
