Calculating the area or volume of similar shapes relies on two very simple formulae you need to know. These are the ‘Area Scale Factor (Area SF)’ and the ‘Volume Scale Factor (Volume SF)’. Using these will help you calculate the unknown area or volume.


Find the AREA of a shape (using a scale factor)


Find the VOLUME of a shape (using a scale factor)

Cumulative Frequency Diagrams
Circle Theorems (I - III)