document.write( "Question 1026261: . In triangle XYZ, XY=13, YZ=20, and XZ=25. What is the measure of angle Z? \n" ); document.write( "
Algebra.Com's Answer #641490 by josgarithmetic(39617)\"\" \"About 
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Law Of Cosines----------------------\"XZ%5E2%2BYZ%5E2-2%2AXZ%2AYZ%2Acos%28Z%29=XY%5E2\" \n" ); document.write( "
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