document.write( "Question 68998: i have a verrrry simple question but i just cant think of the answer...
\n" ); document.write( "how do you find the length of a parallelograms diagonal??
\n" ); document.write( "i need it quick,,, \n" ); document.write( "

Algebra.Com's Answer #49095 by Edwin McCravy(20086) $\"\"$ $\"About$

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i have a verrrry simple question but i\r\n" );
document.write( "just cant think of the answer...\r\n" );
document.write( "how do you find the length of a \r\n" );
document.write( "parallelograms diagonal??\r\n" );
document.write( "i need it quick,,,\r\n" );
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document.write( "Diagonal of a parallelogram = the square root of the \r\n" );
document.write( "sum of the squares of two adjacent sides reduced by \r\n" );
document.write( "twice their product times the cosine of the angle \r\n" );
document.write( "opposite the diagonal desired.\r\n" );
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document.write( "In other words \r\n" );
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document.write( "  D______________C\r\n" );
document.write( "  / .          ./\r\n" );
document.write( " /      .      / \r\n" );
document.write( "/·____________/\r\n" );
document.write( "A              B\r\n" );
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document.write( "There are two diagonals, AC and BD\r\n" );
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document.write( "               _________________________\r\n" );
document.write( "diagonal AC = ÖAB² + BC² - 2×AB×BC×cosÐB\r\n" );
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document.write( "               _________________________\r\n" );
document.write( "diagonal BD = ÖAB² + BC² - 2×AB×BC×cosÐA\r\n" );
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document.write( "Edwin

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