But you don’t have to worry about the complicated ... Here’s a rule you probably know: that a shape with 4 right angles and 4 equal sides is a square! What’s an angle again?

Polygons are multi-sided shapes with different properties ... Circle theorems - Higher - Edexcel Circles have different angle properties described by different circle theorems.

right angles and symmetry. In the study, they could tell the difference between shapes like stars, crescents and squares, as well as between squares and irregular figures with four sides.