Arc length is a fraction of circumference. Area of a sector is a fractions of the area of a circle. Both can be calculated using the angle at the centre and the diameter or radius. Practice circle ...

A full GCSE circle geometry resource covering area, circumference, sectors and key theorems with worked examples, reasoning tasks and higher challenge. This two part resource provides a complete ...

A no-prep worksheet on circle vocabulary. More precisely, the following parts of a circle are initially introduced and used in the activities that follow: center, radius, chord, diameter, arc and ...

The shortest distance between two points is a straight line. This is one of the basic principles of Euclidean geometry. But we live on a spherical Earth, so we cannot travel the straight line path ...