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OpenStudy (anonymous):
Name the second largest angle in the figure if the side between ∠1 and ∠2 is 17 cm, the side between ∠2 and ∠3 is 15 cm, and the side between ∠3 and ∠1 is 14 cm. (Not drawn to scale) A.∠4 B.∠3 C.∠2 D.∠1
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OpenStudy (anonymous):
OpenStudy (anonymous):
use the law of cosines.
OpenStudy (anonymous):
So it would be, B?
OpenStudy (anonymous):
Yes. Angle three, choice "B.", is the second largest angle, 71.6823 degrees, of the four angles.
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