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Angles and Bearings

Parallel lines angle rules

46 self-marking GCSE and IGCSE practice questions on Parallel lines angle rules, written specifically for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Foundation and Higher and Core and Extended tier. Instant marking with full worked solutions on every question.

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Sample Parallel lines angle rules questions

A few of the 46 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

Question 12 marksGrade 3-4
The diagram shows two parallel lines, $m$ and $n$ , crossed by a straight line (diagram not drawn to scale). (a) Work out the size of angle $x$ . (b) Give a reason for your answer.

What are the common mistakes in Parallel lines angle rules?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

Uses the wrong angle fact/theorem for the configuration shown (e.g. alternate vs corresponding angles)
Used the co-interior angle rule (sum to 180°) instead of recognising the angles are alternate (equal)
Gives the correct numerical answer but names the wrong angle rule/reason to justify it
Names the wrong angle rule even when the numerical value is correct.
Sets two adjacent (co-interior) angles equal to each other, as if they were opposite angles, instead of summing them to 180°
Set the two expressions EQUAL to each other (as if they were opposite angles, which ARE equal in a parallelogram) instead of summing them to 180° - angle DAB and angle ABC are ADJACENT angles (co-interior, on the same side of transversal AB), not opposite ones

Quick answers about Parallel lines angle rules

How many Parallel lines angle rules practice questions are there?: There are 46 self-marking GCSE and IGCSE Maths questions on Parallel lines angle rules, written for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Foundation and Higher and Core and Extended tier. Each one is marked instantly and has a full worked solution.
Do I need an account to practise Parallel lines angle rules?: No. You can start practising Parallel lines angle rules straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.