Explore five-, four- and three-sided polygons. Find out how they can change if their sides stay the same length. Create new shapes that always have the same side lengths. Experiment with the circle as ...

Polygons are multi-sided shapes with different properties ... Circle theorems are used in geometric proofs and to calculate angles. Transformations - Edexcel Transformations change the size ...

It may be useful to refer to M1 properties of angles; M1 properties of 2D shapes and M5 Polygons if necessary. The sum of the angles inside any polygon can be found by spitting the polygon into ...