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## Denebel Group Title On a circle of radius 10, how long is an arc that subtends a central angle of 4pi/5 radians? one year ago one year ago

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1. UnkleRhaukus Group Title

length of circumference is $$2 \pi r$$ length of arc is $\frac{2 \pi r}\theta$ where $$\theta$$ is the angle the arc subtends