Key learning points

1. A theorem is a statement that can be demonstrated to be true by accepted mathematical operations and arguments
2. Theorems can be thought of as puzzles to solve, you are showing how to find a result
3. In order to use this theorem, you may need to draw a diagram or add more information to an existing one

Common misconception

Keywords

• Cyclic quadrilateral - A cyclic quadrilateral is a quadrilateral where all four of its vertices lie on a single circle.