Key term for Edexcel GCSE Mathematics, used in Properties and Constructions.
Two angles that add up to exactly 180 degrees, such as co-interior angles between parallel lines.
Supplementary angles appears in Edexcel GCSE Mathematics revision content for Geometry and Measures, especially Properties and Constructions and Quadrilaterals and Triangles.
Geometry and Measures
Properties and Constructions • Quadrilaterals and Triangles
Geometry and Measures
Properties and Constructions • Angles
Geometry and Measures
Properties and Constructions • Angles
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