Image caption ... the four congruent isosceles triangles with base 4 cm and height 6 cm on each side of the square. The net is complete. For a solid 3D shape, rub out the edges that would be ...

A polygon is a flat shape with straight sides. Triangles, squares, rectangles and pentagons are examples of polygons. A polyhedron is a 3D shape with faces made from polygons. Cubes, cuboids ...