Mathematics

Mathematics

Problem

Which of the following expressions represents the area of a sector of a circle of radius rr subtending an angle θ\theta (in degrees) at the centre? a) θ180 πr2\dfrac{\theta}{180}\,\pi r^{2} b) θ360 πr2\dfrac{\theta}{360}\,\pi r^{2} c) θ2 r2\dfrac{\theta}{2}\,r^{2} d) θ180 πr\dfrac{\theta}{180}\,\pi r

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