document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=230704>Question 230704</A>: <I><SPAN STYLE=\"word-break: break-all;\"> can you help me with this:\r<BR>\n" );
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document.write( "2 legs of a right triangle have a total length of 21cm. hypotenuse is 15cm. Find the length of each leg of this right triangle. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #170876 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=170876\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X+Y=21 OR X=21-Y<BR>\n" );
document.write( "X^2+Y^2=15^2<BR>\n" );
document.write( "REPLACE THE X TERM IN THE SECOND EQUATION WITH (21-Y) & SOLVE FOR Y.<BR>\n" );
document.write( "(21-Y)^2+Y^2=15^2<BR>\n" );
document.write( "441-42Y+Y^2+Y^2=225<BR>\n" );
document.write( "2Y^2-42Y+441-225=0<BR>\n" );
document.write( "2Y^2-42Y+216=0<BR>\n" );
document.write( "2(Y^2-21Y+108)=0<BR>\n" );
document.write( "2(Y-12)(Y-9)=0<BR>\n" );
document.write( "Y-12=0<BR>\n" );
document.write( "Y=12 ANS. X=9 ANS.<BR>\n" );
document.write( "Y-9=0<BR>\n" );
document.write( "Y=9 ANS. X=12 ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "9^2+12^2=15^2<BR>\n" );
document.write( "81+144=225<BR>\n" );
document.write( "225=225\r<BR>\n" );
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document.write( " </SPAN>\n" );
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