document.write( "Question 1022222: An acute triangle has side lengths 21 cm, x cm, and 2x cm. If 21 is one of the shorter sides of the triangle, what is the greatest possible length of the longest side, rounded to the nearest tenth?\r
\n" ); document.write( "\n" ); document.write( "A) 18.8 cm
\n" ); document.write( "B) 24.2 cm
\n" ); document.write( "C) 42.0 cm
\n" ); document.write( "D) 72.7 cm
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Algebra.Com's Answer #637965 by FrankM(1040)\"\" \"About 
You can put this solution on YOUR website!
The longest side, 2X must be less than the sum of the 2 shorter sides, X+21\r
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\n" ); document.write( "\n" ); document.write( "\"2X%3CX%2B21\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"X%3C21\"\r
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\n" ); document.write( "\n" ); document.write( "\"2X%3C42\"\r
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\n" ); document.write( "\n" ); document.write( "C
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