Mathematics 32 Online
OpenStudy (anonymous):

Find the length of the arc of a circle whose radius is 6 and whose central angle is 10 degrees Find the length of the arc of a circle whose radius is 6 and whose central angle is 10 degrees @Mathematics

OpenStudy (anonymous):

$s = r \theta$ where theta is in radians. Since you have degrees you have to turn it into radians. So to do that you do this $10 * \frac{\pi}{180}$ or $\frac{\pi}{18}$ Now all you do is plug in the values $s = (6)(\frac{\pi}{18})$ Which simplifies down to $s = \frac{\pi}{3}$ If you want a decimal number then just plug pi/3 in a calculator.

Or you can set up a ratio. Arc distance(s):Circumference(C):: 10 degrees:360 degrees s:C::10:360 C=2piR=12pi 360s=120pi s=(120/360)pi s=(1/3) pi or pi/3

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