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# sector

«sector» in Mova's school dictionary: **a part of a circle between two radii and the curve…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (a sector, sectors)

### meaning for a pupil

1) (maths) A sector is a part of a circle between two radii and the curve, shaped like a slice of pie. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#m1)

2) A sector is a part or area of a place, like a part of a city. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#m2)

3) A sector is one part of a country's business or work, like farming or health. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#m3)

### sense in the lessons

In maths lessons: pie charts are made of sectors; a sector of a circle has an angle at the centre. In social studies: the public sector, the health sector. Phrases: «sector of a circle», «the public sector», «private sector».

### examples

- Each sector of the pie chart shows one favourite fruit. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x1)
- A quarter of a circle is a sector with an angle of 90 degrees. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x2)
- The farm sector employs many people. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x3)
- The soldiers patrolled their sector of the city. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x4)
- The biggest sector of the chart was football. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x5)
- Shade the sector between the two radii. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/#x6)

### note

In a pie chart, sector angle = (part ÷ total) × 360°. A sector is not the same as a segment (the part between a chord and the curve).

### Trees and pragmatics

[Every meaning and example of «sector» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/S/sector/), each sentence with its dependency tree and frames.