Michigan State University - Diagnostic Exam

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6.1

  •   A point moving around a circle of radius 10 cm sweeps out a central angle of 30∘. What is the length of the arc traversed by the point?

    a)  1 ----- 240π cm b) 5π --- 3 cm c) 30 cm
       
    d) 12 cm e) 300π cm

Solution:

Since s= rθ where s is arc length, r is the radius of the circle and θ is the central angle measured in radians, we have

(π ) s = 10 -- 6

Diagnostic:

If you miss this question please review arc length and radian measure.

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July 15, 2008