# Math

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The arc length of a circle created by an angle of pi/3 radians is 2.5 cm. The radius of the circle is approx...

a. o.419 cm
b. 2.387 cm
c. 1.783 cm
d. 0.581 cm

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arc = rØ , where r is the radius and Ø is the central angle.

2.5 = r(π/3)
r = 7.5/π or appr. 2.387

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