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Summary GCSE Maths Revision Notes Trigonometry – Clear Explanations, Worked Examples & Exam Tips (UK)

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Experienced UK tutor creating clear, structured Maths and Science revision notes for KS2, KS3 and GCSE students. UK curriculum aligned Easy-to-follow explanations Perfect for revision, homework support and exam prep All notes are designed to build confidence and understanding — not just memorisation.

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GCSE MATHS REVISION
NOTES
Foundation & higher | exam focused




What You Need to Know

Trigonometry finds missing sides or angles in right-angled triangles.




Key Rules

Formula :

Sin = Opposite / Hypotenuse
Cos = Adjacent / Hypotenuse
Tan = Opposite / Adjacent




Rule 1: Substitute the values into the correct formula
Rule 2: Rearrange the equation to find the missing side length or angle size.



Worked Example

A simple worked example illustrating the key concepts.

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