document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=982054>Question 982054</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In the right triangle, triangle ABC, the altitude line segment CD is at a right angle to the hypotenuse. You can use <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+CD=sqrt%28%28+AD+%29%28+DB+%29%29+ ALIGN=MIDDLE  ALT=\"+CD=sqrt%28%28+AD+%29%28+DB+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > to find certain lengths.\r<BR>\n" );
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document.write( "a) find AD if CD=10 and DB=4\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+CD=sqrt%28%28+AD+%29%28+DB+%29%29+ ALIGN=MIDDLE  ALT=\"+CD=sqrt%28%28+AD+%29%28+DB+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10=sqrt%28%28+AD+%29%28+4+%29%29+ ALIGN=MIDDLE  ALT=\"+10=sqrt%28%28+AD+%29%28+4+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10=sqrt%28+4AD+%29+ ALIGN=MIDDLE  ALT=\"+10=sqrt%28+4AD+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10%5E2=%28sqrt%28+4AD+%29%29%5E2+ ALIGN=MIDDLE  ALT=\"+10%5E2=%28sqrt%28+4AD+%29%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100=4AD+ ALIGN=MIDDLE  ALT=\"+100=4AD+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100%2F4=%28+4AD+%29%2F4+ ALIGN=MIDDLE  ALT=\"+100%2F4=%28+4AD+%29%2F4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25+=+AD+ ALIGN=MIDDLE  ALT=\"+25+=+AD+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "b) find DB if AD=20 and CD=15\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+CD=sqrt%28%28+AD+%29%28+DB+%29%29+ ALIGN=MIDDLE  ALT=\"+CD=sqrt%28%28+AD+%29%28+DB+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15=sqrt%28%28+20+%29%28+DB+%29%29+ ALIGN=MIDDLE  ALT=\"+15=sqrt%28%28+20+%29%28+DB+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15=sqrt%28+20DB+%29+ ALIGN=MIDDLE  ALT=\"+15=sqrt%28+20DB+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15%5E2=%28sqrt%28+20DB+%29%29%5E2+ ALIGN=MIDDLE  ALT=\"+15%5E2=%28sqrt%28+20DB+%29%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+225=20DB+ ALIGN=MIDDLE  ALT=\"+225=20DB+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+225%2F20=%28+20DB+%29%2F20+ ALIGN=MIDDLE  ALT=\"+225%2F20=%28+20DB+%29%2F20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+45%2F4+=+DB+ ALIGN=MIDDLE  ALT=\"+45%2F4+=+DB+\"   DISABLED_style= \"max-width:90%; height:auto;\" > or 11.25\r<BR>\n" );
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document.write( " are my answers correct?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #602937 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20055)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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/cgi-bin/show-face.mpl?user=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=602937\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "One way to check them is with graph paper, pencil and ruler, and count the\r\n" );
document.write( "squares.  In the first one below, by counting the little squares on the\r\n" );
document.write( "graph paper, you see that AD=25,CD=10,DB=4. And if you put the corner of\r\n" );
document.write( "a sheet of paper at C, you will see that it is a right angle of 90°.\r\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28600%2C4200%2F17%2C1%2C33%2C1%2C13%2Cgrid%281%29%2C%0D%0Alocate%282.2%2C2%2CA%29%2C+locate%2827.2%2C2%2CD%29%2C+locate%2831.2%2C2%2CB%29%2C+locate%2827.2%2C12.8%2CC%29%2C%0D%0Ared%28triangle%282%2C2%2C31%2C2%2C27%2C12%29%2Ctriangle%282%2C2%2C27%2C2%2C27%2C12%29%2C%0D%0Aline%282%2C2%2C31%2C2%29%2Cline%2831%2C2%2C27%2C12%29%2Cline%2827%2C12%2C2%2C2%29%2Cline%2827%2C12%2C27%2C2%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r\n" );
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document.write( "It appears that you have done good work, and neatly too, using the\r\n" );
document.write( "notation of this site.\r\n" );
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document.write( "Edwin</PRE>\r<BR>\n" );
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