x

Parts of a sector

Labelled sector with centre O, two radii marked r, central angle theta, arc length L and shaded sector area A

A sector is a slice of a circle made by two radii and an arc. If the angle at the centre is $θ\theta$ , then the sector is the fraction $θ360\frac{\theta}{360}$ of the whole circle.

Sector Areas and Arc Lengths Lesson

IGCSE
Maths
Sector Areas and Arc Lengths

Step-by-step lessons covering Oxford AQA IGCSE Maths Sector Areas and Arc Lengths for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.

Lessons

x

Parts of a sector

Labelled sector with centre O, two radii marked r, central angle theta, arc length L and shaded sector area A

A sector is a slice of a circle made by two radii and an arc. If the angle at the centre is $θ\theta$ , then the sector is the fraction $θ360\frac{\theta}{360}$ of the whole circle.

Sector Areas and Arc Lengths Lesson

IGCSE
Maths
Sector Areas and Arc Lengths

Step-by-step lessons covering Oxford AQA IGCSE Maths Sector Areas and Arc Lengths for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) format. Since content from any part of the specification can appear on either paper, keep number and algebra fluency sharp throughout the course rather than leaving it until near the exam.