Vertically opposite angles
What Vertically opposite angles means in Mathematics GCSE, as defined for AQA, OCR.
Definitions of Vertically opposite angles
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Reference: AQA
When two straight lines cross, these angles are equal.
The angles opposite each other when two lines cross. They are always equal.
Topics that use Vertically opposite angles
- Properties and constructions (AQA GCSE)
- Angles (OCR GCSE)
Related terms
- Parallel lines
- Polygon
- Regular polygon
- Alternate and corresponding angles on parallel lines
- Angle bisection
- Angle sums in triangles, polygons and regular polygons
- Arc
- ASA
Using Vertically opposite angles in the exam
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