What you need to know
Check yourself against these “I can” statements.
- I can name parts of a circle, like arcs, sectors, segments and chords
- I can use the angle at the centre, angles in the same segment and the angle in a semicircle
- I can use the angle properties of a cyclic quadrilateral
- I can use the facts about tangents and radii, and the alternate segment theorem
- I can prove the circle theorems and give reasons in angle problems
Practise this topic
3 resourcesFill the Gaps: Maths Vocabulary
A sentence explaining one of the unit’s key words, with gaps. Pick the right word for each gap from the words scattered round it: the right ones and plenty of wrong ones. A deck for every unit.
🧮 ToolFormula Sheet
Make a printable formula sheet: tick the shapes you want (2D area, perimeter and arc length, volume, surface area, and sector, arc and segment in radians), the eight circle theorems with diagrams, the GCSE formulae sheet…
🧮 ToolVisual Proofs
Animated visual proofs of Pythagoras’ theorem, of the sums of integers, odd numbers, squares and cubes, and of key results in algebra, geometric series, trigonometry and inequalities. They play like Shape Formulas: drag the bar…
These are the pages for Circle Theorems in the GCSE scheme of work, following Pearson Edexcel GCSE (9–1) Mathematics, Higher tier (1MA1). Open this topic in Mr Wells Maths to see it alongside the rest of the course.