document.write( "Question 1108207: solve for x
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Algebra.Com's Answer #723220 by ikleyn(52810)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "1.  Find the area of the triangle using the Heron's formula.\r\n" );
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document.write( "2.  Then find the altitude of the triangle.\r\n" );
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document.write( "3.  Then apply Pythagoras to find x.\r\n" );
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\n" ); document.write( "Regarding the Heron's formula, see the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Proof of the Heron's formula for the area of a triangle, \r
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