Revision guides

GCSE Maths Geometry

GCSE geometry explained: Pythagoras, trigonometry, circle theorems and angle rules, with the diagrams and worked examples exam questions expect.

Geometry 11 min read

GCSE Trigonometry: SOHCAHTOA Explained with Examples

Complete guide to GCSE trigonometry. Learn SOHCAHTOA, how to find missing sides and angles, and the exact values you need to memorise for every exam board.

Updated 15 August 2026Read guide

Geometry 9 min read

Pythagoras' Theorem — GCSE Maths Complete Guide

Everything you need to know about Pythagoras' theorem for GCSE Maths. Find missing sides, check right angles, and apply to 3D problems with worked examples.

Updated 15 August 2026Read guide

Geometry 16 min read

Circle Theorems Exam Questions: How to Spot Which Theorem to Use

How to spot which circle theorem a GCSE exam question wants: radius, diameter and tangent clues, examiner-approved reasons, and a multi-theorem worked example.

Updated 15 August 2026Read guide

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