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Find the angle subtended at the centre of circle of radius 5cm by an arc of length (5π/3) cm

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Find the angle subtended at the centre of circle of radius 5cm by an arc of length (5π/3) cm.

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Radius (r) = 5 cm

θ = angle subtended at centre (degrees)

Length of Arc = θ/360° x 2πr cm

But arc length = 5π/3 cm

Therefore, Angle subtended at centre = 60°

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