document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=717056>Question 717056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The perimeter of a rhombus is 40 cm, and one diagonal is 12 cm long.  How long is the other diagonal?\r<BR>\n" );
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document.write( "This question was already answered, but I don't understand the solution posted.  Please help me! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #440122 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=440122\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> All 4 sides in a rhombus have the same length <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s ALIGN=MIDDLE  ALT=\"s\"   DISABLED_style= \"max-width:90%; height:auto;\" > and that makes the perimeter <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4s ALIGN=MIDDLE  ALT=\"4s\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4s=40cm ALIGN=MIDDLE  ALT=\"4s=40cm\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=s=10cm ALIGN=MIDDLE  ALT=\"s=10cm\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The diagonals split the rhombus into 4 congruent triangles, like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C250%2C-9%2C9%2C-7.5%2C7.5%2Crectangle%280%2C0%2C0.5%2C0.5%29%2C%0D%0Agreen%28line%28-8%2C0%2C8%2C0%29%29%2Cred%28line%280%2C-6%2C0%2C6%29%29%2C%0D%0Ablue%28line%28-8%2C0%2C0%2C6%29%29%2Cblue%28line%280%2C6%2C8%2C0%29%29%2C%0D%0Ablue%28line%288%2C0%2C0%2C-6%29%29%2Cblue%28line%280%2C-6%2C-8%2C0%29%29%2C%0D%0Alocate%280.1%2C3.2%2Cred%286%29%29%2Clocate%280.1%2C-2.8%2C6%29%2C%0D%0Alocate%283.8%2C1%2Cgreen%28x%29%29%2Clocate%283%2C3%2Cblue%2810%29%29%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > In the right triangle with the colorful side measurements marked, the vertical leg (red) is half of the 12 cm diagonal, so it measures 6 cm.<BR>\n" );
document.write( "The hypotenuse is the blue side of the rhombus, measuring 10 cm.<BR>\n" );
document.write( "The horizontal leg (green) measures x cm, and is half of the (green) horizontal diagonal.<BR>\n" );
document.write( "According to the Pythagorean theorem about right triangles,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B8%5E2=10%5E2 ALIGN=MIDDLE  ALT=\"x%5E2%2B8%5E2=10%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B64=100 ALIGN=MIDDLE  ALT=\"x%5E2%2B64=100\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=100-64 ALIGN=MIDDLE  ALT=\"x%5E2=100-64\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=36 ALIGN=MIDDLE  ALT=\"x%5E2=36\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=6 ALIGN=MIDDLE  ALT=\"x=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The length of the other (green) diagonal is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2Ax=2%2A6cm=highlight%2812cm%29 ALIGN=MIDDLE  ALT=\"2%2Ax=2%2A6cm=highlight%2812cm%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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