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GCSE Maths

Geometry

Angles in Parallel Lines

Angles in Parallel Lines

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Practice Questions and Resources

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Everything you need to master this topic.

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Workpack

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Solutions

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Level 3–5
Foundation & Higher
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Key Points 

  • Alternate angles are equal.

  • Corresponding angles are equal.

  • Co-interior (allied) angles add up to 180°.

  • Use parallel line rules to calculate unknown angles.

  • Look for 'Z', 'F' and 'C' angle patterns.


Keywords: parallel lines, alternate angles, corresponding angles, co-interior angles, angle rules, GCSE maths.

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