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Trigonometry uses sine, cosine and tangent ratios to find missing sides and angles in right-angled triangles. Higher-tier students extend this to non-right-angled triangles using the sine rule, cosine rule, and area formula.
Our tutors see these errors again and again. Knowing them in advance gives you a head start.
Mislabelling the sides (especially confusing adjacent and opposite)
Using the wrong trig ratio for the given sides
Forgetting to use the inverse trig function (sin⁻, cos⁻, tan⁻) when finding an angle
This topic is tested by the following exam boards. Our tutors are specialists in each one.
Pythagoras' theorem relates the three sides of a right-angled triangle and is one of the most practical geometry topics at GCSE. It is used in 2D and 3D problems, coordinate geometry, and combined with trigonometry at higher tier.
Geometry & MeasuresAngle facts are fundamental to geometry and regularly appear across all papers. Students must apply rules about angles on straight lines, at points, in triangles, in parallel lines and in polygons to find missing angles with clear reasoning.
Geometry & MeasuresArea and perimeter calculations cover rectangles, triangles, parallelograms, trapezia and circles. Compound shapes combine these, and higher-tier questions involve sectors and segments of circles.
Everything you need to know about revising for GCSE Maths in 2026. From building a revision schedule to mastering every topic area, this comprehensive guide covers exam structure, study strategies, and expert tips to maximise your grade.
Study TipsA detailed breakdown of the 10 most challenging GCSE Maths topics on the Higher tier. For each topic, understand why it is difficult, the most common mistakes, and practical strategies to master it.
Exam PreparationA detailed comparison of the three major GCSE Maths exam boards in the UK. Understand the differences in paper structure, question style, and grade boundaries to make the most of whichever board your school uses.
Take our free diagnostic quiz to find out exactly where you stand, then get matched with a tutor who specialises in geometry & measures.