## Loci Definition

Want to download the Loci revision notes in PDF format? Imagine a pilot flying an aeroplane at a certain speed, direction and altitude. By satisfying all these conditions, the plane had a good flight. In Mathematics, a set of points that satisfy one or more conditions is called a locus. Let’s have an example: A …

## Loci & Constructions

Want to download the Loci & Constructions revision notes in PDF format? 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 …

## Circle Theorems

Want to download the Circle Theorems revision notes in PDF format? 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 …

## 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 …

## Angles – Acute, Obtuse, Straight and Right

Want to download the Angles revision notes in PDF format? Related Angles Lines AB and CD are parallel to one another (hence the » on the lines).a and d are vertically opposite angles. Vertically opposite angles are equal. (b and c, e and h, f and g are also vertically opposite).g and c are corresponding …