Glossary
Sector
A sector is the region of a circle enclosed by two radii and the arc between them, shaped like a slice of pie. The angle between the two radii determines its size.
A sector differs from a segment, which is bounded by a chord and an arc instead.
Meaning
A sector is the region of a circle enclosed by two radii and the arc between them, shaped like a slice of pie. The angle between the two radii determines its size.
A sector differs from a segment, which is bounded by a chord and an arc instead.
Where it appears in Add Math
You meet Sector in the Circular Measure chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.
Our teachers make sure a student can not only recite what Sector means but use it fluently in a full solution.
The term in three languages
Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Sector (EN) · Sektor (BM) · 扇形 (中文)
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