Learn how to calculate the areas of rectangle, triangle, and circle in Excel for a single cell or range of cells usin this formula.

We can work out the area of a triangle by working out the area of a rectangle and then dividing it by two. Discover more in this Second Level Bitesize guide.

Learn about and revise different 2-dimensional shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.