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Maths

Stretch – Angles in Parallel Lines

Stretch (universal 11+): use alternate, corresponding and co-interior angles between parallel lines to find missing angles.

MathsAge 11+25 minutes

What this topic covers

  • Recognise alternate angles (Z) as equal and corresponding angles (F) as equal.
  • Recognise co-interior angles (C) as adding to 180°.
  • Combine these with vertically opposite and straight-line facts in multi-step problems.

Core concept summaries

Key ConceptsAlternate Angles (Z)Corresponding Angles (F)Co-Interior Angles (C); Combining

Practice formats pupils may meet

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

clozematchingquiz

Example quiz question

Alternate angles: one is 60°. The other?

  1. 60°
  2. 30°
  3. 300°
  4. 120°
Show the answer

Answer: A. 60°

Equal.