The most common pyramids are square-based, rectangular-based and triangular-based pyramids. The area of the base is \(5 \times 5 = 25cm^2\) The area of each triangular face is \((5 \times 6) \div 2 = ...

Complete this interactive activity to find out more about 3D shapes and then put your knowledge to the test. Cubes have 6 flat faces which are all the same size. Everyday things that have the shape of ...