document.write( "Question 1006670: The nonparallel sides of a trapezoid are 13 and 20, a third side is 9, and the trapezoid's height is 12. Find the possible lengths for the fourth side of the trapezoid \n" ); document.write( "

Algebra.Com's Answer #623359 by anand429(138) $\"\"$ $\"About$

You can put this solution on YOUR website!
Case-I
\n" ); document.write( " $\"x=+sqrt%2820%5E2-12%5E2%29+%2B+sqrt%2813%5E2-12%5E2%29+%2B+9\"$
\n" ); document.write( "=> $\"x+=+30\"$ \r
\n" ); document.write( "\n" ); document.write( "Case-I
\n" ); document.write( " $\"x=+sqrt%2820%5E2-12%5E2%29+-+sqrt%2813%5E2-12%5E2%29+%2B+9\"$
\n" ); document.write( "=> $\"x+=+20\"$ \r
\n" ); document.write( "\n" ); document.write( "Draw figures to understand clearly
\n" ); document.write( " \n" ); document.write( "

\n" );