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The length of an arc of a circle is 6.28 cm. If the circumference of the circle is 37.68 cm, what is the degree measure of the arc?

The length of an arc of a circle is 6.28 cm. If the circumference of the circle is 37.68 cm, what is the degree measure of the arc?

Asked by: Guest | Views: 26
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Guest [Entry]

"Ratio of length of arc to  circumference of circle

    =    6.28 : 37.68   =    1 :  6

    ∴   the arc subtends an angle of      1/6 * 360

                                                           =    60°"