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Two angles that add to 180 degrees and when adjacent form a straight line.
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Basics of Geometry
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Complementary, Supplementary, and Vertical Angles
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Defines types of angles and goes over some practice problems.
MAT.GEO.106 (Angle Properties and Theorems - Geometry)
MAT.GEO.106.01 (Missing Measures of Complementary and Supplementary Angles - Geometry)
MAT.GEO.106.0102 (Complementary Angles - Geometry)
MAT.GEO.106.0104 (Supplementary Angles - Geometry)
MAT.GEO.106.06 (Vertical Angles - Geometry)
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