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Practice Questions and Resources
Everything you need to master this topic.
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.
Step-by step tutorial
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