A GCSE Maths video about area of triangles, parallelograms and trapeziums. This video explains hows to calculate the area of a triangle, parallelogram and trapezium using worked examples. Find out ...
Named for Plato, who theorized that the classical elements were made of these regular polyhedrons, three of the Platonic solids are composed of equilateral triangles: the tetrahedron, octahedron, and ...