Circle Theorems Reference Cards

Free maths printable for teachers · Cards

Circle Theorems Reference Cards: A single A4 poster laid out as 12 dashed-outline, numbered cards arranged in a grid. Each card has: a coloured number badge and short title (e.g. 'Angle at the Centre'), a labelled circle diagram with points/angles marked, and a boxed short statement with a symbolic equation or formula (angle equalities, 90°, PA×PB=PC×PD, PT^2 = PA×PB, etc.). Text density on each card is low — one short paragraph or sentence and a compact formula. Icons show scissors and cut gui...

About this printable

This resource is a set of numbered, colour-coded reference cards that each show a diagram of a circle situation plus a short statement and formula for a specific circle theorem (e.g. angle at the centre, tangent–chord, power of a point). It is designed to be cut into individual cards for student use as pocket references, prompt cards in worked examples, or stimulus for practice questions. The cards cover basic to extended circle results commonly required in GCSE-level geometry problems.

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