Exterior angle
What Exterior angle means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of Exterior angle
Check what you remember
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Reference: Pearson Edexcel
For a convex polygon, the angle between one side and the extension of an adjacent side, supplementary to the interior angle at that vertex.
Topics that use Exterior angle
- Geometry and measures - Properties and constructions (Pearson Edexcel GCSE)
Related terms
- Alternate segment
- Angle properties
- Angle properties in circles
- Arc
- centre
- Chord
- Circumference
- Congruence and similarity
Using Exterior angle in the exam
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