document.write( "Question 1068724: The Law of Cosines applies to which cases of oblique triangles?\r
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document.write( "A.) AAA and SSS
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document.write( "B.) SSS and ASA
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document.write( "C.) SAS and SSS
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document.write( "D.) SAS and SSA\r
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document.write( "I think it's C or D. \n" );
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Algebra.Com's Answer #684000 by KMST(5328) You can put this solution on YOUR website! The law of cosines formula includes \n" ); document.write( "3 side lengths and one angle. \n" ); document.write( "Given 3 of those, you can find the fourth one, \n" ); document.write( "so C and D look promising, \n" ); document.write( "B would not work for ASA because ASA gives only one side length, \n" ); document.write( "and A is ridiculous, because for AAA, \n" ); document.write( "there is no way for any mathematician to guess the side lengths. \n" ); document.write( "So, what about C and D. \n" ); document.write( "Law of shines is easier to apply, \n" ); document.write( "and can be applied whenever you have any 3 measurements, \n" ); document.write( "including one angle and the opposite side. \n" ); document.write( "That is what you have in SSA, \n" ); document.write( "so for SSA you would use law of sines. \n" ); document.write( "So, I vote for \n" ); document.write( "Besides, SSA can be tricky, \n" ); document.write( "not only because you have to be careful not to accidentally spell it backwards, \n" ); document.write( "but because there could be two different triangles with the same SSA. \n" ); document.write( " \n" ); document.write( "side b, and the length of the red sides, \n" ); document.write( "how would you know which red side to choose? \n" ); document.write( " |