document.write( "Question 982064: if three sides of trapezoid are 18.318mm, 17.02296 and 17.02296 the what is the length of fourth side?? \n" ); document.write( "

Algebra.Com's Answer #602938 by Edwin McCravy(20056) $\"\"$ $\"About$

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That's not enough information to determine a trapezoid.  You must be\r\n" );
document.write( "given which two sides are parallel, and something else, perhaps the\r\n" );
document.write( "perpendicular height.

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