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In triangle XYZ, Y = 45 degrees and Z = 120 degrees. If XZ  = 4, then what is XY?

 Jan 10, 2021
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Use the law of sines

 

4 / sin45   =   xy/sin120        solve for xy

 

sin120 *   4 / sin45 = XY 

 Jan 10, 2021

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