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supplementary angle
either of two angles that added together produce an angle of 180°.
Source: Dictionary.com
supplementary angle | Define supplementary angle at Dictionary.com
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Supplementary Angles - Math is Fun


Supplementary Angles. Two Angles are Supplementary when they add up to 180 degrees. supplementary angles 40 and 140. These two angles (140° and 40°) ...

Complementary & supplementary angles | Vertical ... - Khan Academy


Learn about complementary and supplementary angles, as well as the definitions of adjacent and straight angles.

Complementary & supplementary angles | Vertical ... - Khan Academy


Use your knowledge about complementary and supplementary angles to find missing angles.

Identifying supplementary, complementary, and vertical angles ...


Practice telling whether two angles are supplementary, complementary, or vertical.

Supplementary Angles definition - Math Open Reference


Definition and properties of supplementary angles - two angles that add to 180 degrees.

Complementary and supplementary angles - Basic mathematics


To learn about complementary and supplementary angles using good illustrations.

Supplementary and Complementary Angles - SoftSchools


There are many special relationships that can be formed using angles. Here is a look at two of the relationships. Supplementary angles are two angles that have ...

IXL - Complementary and supplementary angles (6th grade math ...


Fun math practice! Improve your skills with free problems in 'Complementary and supplementary angles' and thousands of other practice lessons.