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What is the length of the arc on a circle with radius 10 cm intercepted by a 20° angle?

Use 3.14 for π .


Round the answer to the hundredths place.

 Nov 8, 2018
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The entire circle circumference is given by 2piR = 2 pi (10) = 20 pi   cm

  20 degrees' worth out of 360 is given by

       20/360  x  20 pi = 400 pi /360 = 400(3.14)/360 = ~3.49 cm

 Nov 8, 2018
edited by ElectricPavlov  Nov 8, 2018

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