Maths Dictionary · JSS 3, SS 2
Sector
Simple meaning
A 'slice' of a circle between two radii and an arc.
Example
Each slice of a pie chart is a sector.
See it
From the Pie Charts lesson. Try moving things around.
Favourite fruit of JSS 3 students
| Item | Freq. | Anglef ÷ 36 × 360° |
|---|---|---|
| 12 | 120° | |
| 9 | 90° | |
| 6 | 60° | |
| 9 | 90° | |
| Total | 36 | 360° |
Mango: frequency12
Mango: 1236 × 360° = 120°That is ≈ 33.3% of the circle.