GCSE · Angles & polygons

Angles in parallel linesExam-style questions

Why corresponding angles are equal, why alternate angles are equal, and why co-interior angles add up to 180° — plus the exact naming examiners accept, and the add-a-parallel-line trick for awkward figures.

Start practising Read the lesson

16 questions · GCSE (Higher) level · mark scheme and worked solution on each · no sign-up to try

DifficultyAllLevel 1Level 2Level 3Level 4Level 5
  1. 1
    The diagram shows two parallel lines crossed by a straight line.42°xDiagram NOT accurately drawn

    (a) Write down the size of angle xx.

    (b) Give a reason for your answer.
    Level 1 · 2 marksTry it