document.write( "Question 287603: if you are given two sides of a triangle and an included angle. how do you find the third side? please help if possible. thank you \n" ); document.write( "
Algebra.Com's Answer #208363 by dabanfield(803)\"\" \"About 
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The \"Law of Cosines\" says that for a triangle with sides a, b and c:\r
\n" ); document.write( "\n" ); document.write( "c = a^2 + b^2 -2ab*cos(x) where x is the angle between sides a and b (that is the angle opposite side c).
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