document.write( "Question 985964: I have been working on this problem and feel kind of stuck:
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document.write( "\"Consider a triangle ABC.
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document.write( "Suppose that sides a=63, b=51, and c=16.
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document.write( "Solve the triangle.\r
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document.write( "Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth.\r
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document.write( "If there is more than one solution, use the OR button.\"\r
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document.write( "When I try to break it down using the Inverse Cosine, I keep getting NaN. Not sure if I am doing it wrong or if it is actually No Solution. \n" );
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Algebra.Com's Answer #606740 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I have been working on this problem and feel kind of stuck: \n" ); document.write( "---------------\r \n" ); document.write( "\n" ); document.write( "\"Consider a triangle ABC. \n" ); document.write( "Suppose that sides a=63, b=51, and c=16. \n" ); document.write( "Solve the triangle.\r \n" ); document.write( "\n" ); document.write( "Carry your intermediate computations to at least four decimal places, and round your answers to the nearest tenth.\r \n" ); document.write( "\n" ); document.write( "If there is more than one solution, use the OR button.\" \n" ); document.write( "--------------- \n" ); document.write( "When I try to break it down using the Inverse Cosine, I keep getting NaN. Not sure if I am doing it wrong or if it is actually No Solution. \n" ); document.write( "============================================== \n" ); document.write( "IDK what NaN means. Sodium Nitrogen? \n" ); document.write( "----- \n" ); document.write( "Use the Cosine Law to find an angle. \n" ); document.write( "--- \n" ); document.write( "c^2 = a^2 + b^2 - 2ab*cos(C) \n" ); document.write( "16^2 = 63^2 + 51^2 - 2*63*51*cos(C) \n" ); document.write( "cos(C) = -6314/-6426 =~ 0.982571 \n" ); document.write( "C =~ 10.71295 degs \n" ); document.write( "--------------- \n" ); document.write( "Then use either the Cosine Law of the Law of Sines to find a 2nd angle. \n" ); document.write( "--- \n" ); document.write( "The 3rd angle = 180 - (angle1 + angle2) \n" ); document.write( " |