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Maths

Finding Missing Angles

Use angle facts about straight lines, points, triangles, quadrilaterals and vertically opposite angles to find unknown angles.

MathsadvancedAges 11+50 minutes

What this topic covers

  • Use the fact that angles on a straight line sum to 180 degrees.
  • Use the fact that angles at a point sum to 360 degrees.
  • Use the fact that angles in a triangle sum to 180 degrees and in a quadrilateral sum to 360 degrees.
  • Find missing angles using these angle facts.

Core concept summaries

Key ConceptsAngles on a Line and at a PointAngles in Triangles and QuadrilateralsVertically Opposite Angles

Practice formats pupils may meet

NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.

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