GCSE Edexcel Circle theorems - Higher - Edexcel Test questions Circles have different angle properties described by different circle theorems. Circle theorems are used in geometric proofs and to ...

Circle theorems are properties that are true for all circles, regardless of their size. There are six theorems to learn and recognise. Questions can have a combination of theorems. It is important to ...

Summary We state and prove a surprising incidence theorem that was discovered with the help of a computer graphics program. The theorem involves sixteen points on ten lines and five circles; our proof ...