Angle Subtended at the Centre

The angle subtended at the centre is the angle formed at a circle's centre by the two radii drawn to the ends of an arc or chord. It measures how much of the circle the arc spans and appears directly in the formulas $s=r\theta$ and $A=\frac{1}{2}r^{2}\theta$.

You meet Angle Subtended at the Centre 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 Angle Subtended at the Centre means but use it fluently in a full solution.

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Angle Subtended at the Centre (EN) · Sudut Tercangkum di Pusat (BM) · 圆心角 (中文)

Other key terms from the Circular Measure chapter you may want to check:

• Radian
• Arc Length
• Sector
• Area of a Sector
• Segment of a Circle