Adjacent angles on a straight line

Key term for Edexcel GCSE Mathematics, used in Properties and Constructions.

Definition

Angles that share a common vertex and a common side, lying flat on a continuous straight line, summing to 180°.

Exam Context

Adjacent angles on a straight line appears in Edexcel GCSE Mathematics revision content for Geometry and Measures, especially Properties and Constructions and Angles.

Geometry and Measures Properties and Constructions Angles

Found in Revision Notes

Geometry and Measures

Basic Angle Facts and Vertically Opposite Angles

Properties and Constructions • Angles

Revise note

Related Key Terms

Angles at a point Reflex angle Supplementary angles Vertex Vertically opposite angles

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