Mathematics for IGCSE & O level - Mensuration (Section 11 - No. 13)
Which of the following are key parts of the formula for the area of a sector of a circle?
Radius of the circle
Central angle of the sector
Area of the full circle
Circumference
Explanation
The area of a sector depends on the fraction of the circle it represents, which is determined by the central angle, and the radius of the circle.
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