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Mathematics 16 Online
OpenStudy (anonymous):

In ΔXYZ, XY = 6.32, YZ = 5.83, and XZ = 11.05. What is m∠Y, correct to one decimal place?

OpenStudy (anonymous):

Use the law of cosines to figure it out. http://www.mathsisfun.com/algebra/trig-cosine-law.html

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