Isosceles, scalene, equilateral and right-angled. See you later. Urgh, uh hello. It’s the irregular polygons. This bunch have sides of different lengths and different angles. JavaScript is ...

A polygon is regular if it is uniform and its faces are all alike ... Euclid proved in his Elements of Geometry that there are only five Platonic solids – the regular tetrahedron (four sides that are ...