document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=724190>Question 724190</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Right triangle ACB's altitude, CD, intersects AB at D. If AD = 3 and DB = 4, find the length of CD in simplest radical form.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #443639 by </B><A HREF=/tutors/aboutme.mpl?userid=fcabanski><B>fcabanski(1391)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fcabanski><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=443639\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The altitude of a right triangle, dropped from the right angle, is a geometric mean of the two formed triangles.  The part of the base of the short side / the altitude = the altitude / the part of the base of the long side.<P><BR>\n" );
document.write( "In this problem AD/h = h/DB.  ---> 3/h = h/4 ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%5E2=12 ALIGN=MIDDLE  ALT=\"h%5E2=12\"   DISABLED_style= \"max-width:90%; height:auto;\" > so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h+=+sqrt%2812%29+=+sqrt%284%2A3%29+=+2%2Asqrt%283%29 ALIGN=MIDDLE  ALT=\"h+=+sqrt%2812%29+=+sqrt%284%2A3%29+=+2%2Asqrt%283%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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