document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=912947>Question 912947</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm studying for the GRE and math isn't my best subject. I have a rectangular solid with length 7, width 10, and height 2. I need to find the diagonal of this solid. I did the Pythagorean triangle equation of 10 squared + 7 squared= c squared. Long story short I got  v149 (square root), which is equal to 12.2. However, the correct answer was  3 times the square root of 17, which is 12.36. How am I supposed to get to that form of the answer? My calculator will only show an answer with decimals, not a simplified equation like 3&#8730;17  to We're not allowed TI-84 calculators, just basic ones. I need to be able to figure out that type of answer in a short period of time (the section of the test is only 25min) Help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #554197 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=554197\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28L%5E2+%2B+w%5E2+%2B+h%5E2%29+=+sqrt%2848+%2B+100+%2B+4%29+=+sqrt%28152%29+=+sqrt%289%2A17%29+=+3sqrt%2817%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Note: Diagonal is from corner to corner<BR>\n" );
document.write( "(base diagonal)^2  = l^2 + w^2<BR>\n" );
document.write( "D^2 = (l^2 + w^2) + h^2<BR>\n" );
document.write( "thus..<BR>\n" );
document.write( "D = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28L%5E2+%2B+w%5E2+%2B+h%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28L%5E2+%2B+w%5E2+%2B+h%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );