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OpenStudy (anonymous):
The length of arc AB = 9π and m∠AOB = 150°. What is the length of the radius of the circle?
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OpenStudy (anonymous):
OpenStudy (anonymous):
@RadEn can you help me, please?
OpenStudy (raden):
use the proportion : 150/360 = arc AB/circumference circle 150/360 = 9π/2πr 5/12 = 9/2r solve for r
OpenStudy (anonymous):
9? = 2?r(150/360) r = 10.8 unites 2? = (1/2)(x)3^2, where x is the measure of ?COD in rad. x = 4?/9 rad = 80 degrees im for sure
OpenStudy (anonymous):
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