Loci & Constructions

A locus is a set of points satisfying a certain condition. The term ‘locus’, however, is rarely used in exams. The question is more likely to be of this format: Example: The diagram shows two points P and Q. On the diagram shade the region which contains all the points which satisfy both the following: … Read more

Circle Theorems

The red line in the second diagram is called a chord. It divides the circle into a major segment and a minor segment. The diagrams show that: a) The angle formed at the centre of the circle by lines originating from two points on the circle’s circumference is double the angle formed on the circumference … Read more

Areas and Volumes

*** Remember, with many exam boards, formulae will be given to you in the exam. However, you need to know how to apply the formulae and learning them (especially the simpler ones) will help you in the exam. *** A prism is a shape with a constant cross section, in other words the cross-section looks … Read more