Mathematics

Mathematics

Problem

What is the area of a sector that subtends an angle of θ\theta degrees at the centre of a circle of radius rr? a) θ180 πr\dfrac{\theta}{180}\,\pi r b) θ180 πr2\dfrac{\theta}{180}\,\pi r^{2} c) θ360 πr2\dfrac{\theta}{360}\,\pi r^{2} d) 12 r2θ\dfrac{1}{2}\,r^{2}\theta

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