A polygon is regular if it is uniform and its faces are all ... that there are only five Platonic solids – the regular tetrahedron (four sides that are equilateral triangles), the cube (six sides that ...

Use a ruler and pen to join the dots – you now have a regular hexagon. Image caption ... of the line to the dot – you now have a regular equilateral triangle.

A regular polygon has sides that are equal in length and equal angles. These shapes are all regular polygons. A regular triangle is called an equilateral triangle. A regular quadrilateral is ...