document.write( "Question 317176: What is the unknown length of the right triangle, side a=12, b=unknown,c=4
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Algebra.Com's Answer #227047 by Fombitz(32388)\"\" \"About 
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If a is the hypotenuse, then
\n" ); document.write( "\"a%5E2=b%5E2%2Bc%5E2\"
\n" ); document.write( "\"144=b%5E2%2B16\"
\n" ); document.write( "\"b%5E2=128\"
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\n" ); document.write( "If b is the hypotenuse, then
\n" ); document.write( "\"b%5E2=a%5E2%2Bc%5E2\"
\n" ); document.write( "\"b%5E2=144%2B16\"
\n" ); document.write( "\"b%5E2=160\"
\n" ); document.write( "\"highlight%28b=4%2Asqrt%2810%29%29\"
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