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22-01-2018
Mathematics

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PLEASE HELP WILL GIVE BRAINLIEST

What is the arc measure of a sector with area 38.485 ft2 and radius 7?

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22-01-2018

s=r*theta where s is arc length and the r is radius and theta is in RADIANS ONLY!! If you use degrees this formula does not work.

So we have a arc length of 38.485ft and a radius of 7. So rearranging the formula for theta, we get;

theta=(38.485)/(7)= 5.498radians then to convert to degrees if needed just take;

5.498rad*(180/pi)= 315deg

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