A quadrilateral is a four-sided shape, where the sides are straight and meet at four vertices. The prefix “quad” means four. There are several types of quadrilaterals. Can you name them?

Sometime later, after considering his position, Mr Square realised that his new shape was permanent. So he renamed himself Mr Rhombus (after the town Rhom and the bus that changed his life forever).

Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Eduqas study guide.