document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=921402>Question 921402</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if the perimeter of an equilateral triangle be 18cm,then the length of each median is </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558977 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=558977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> an equilateral triangle has all sides equal length\r<BR>\n" );
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document.write( "so,the perimeter is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=3a ALIGN=MIDDLE  ALT=\"P=3a\"   DISABLED_style= \"max-width:90%; height:auto;\" > where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a ALIGN=MIDDLE  ALT=\"a\"   DISABLED_style= \"max-width:90%; height:auto;\" > is side \r<BR>\n" );
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document.write( "if the perimeter of an equilateral triangle be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=18cm ALIGN=MIDDLE  ALT=\"P=18cm\"   DISABLED_style= \"max-width:90%; height:auto;\" >,then\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18cm=3a ALIGN=MIDDLE  ALT=\"18cm=3a\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18cm%2F3=a ALIGN=MIDDLE  ALT=\"18cm%2F3=a\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6cm=a ALIGN=MIDDLE  ALT=\"6cm=a\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " the median divides equilateral triangle into two right angle triangle where the median is one leg, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2F2 ALIGN=MIDDLE  ALT=\"a%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the other leg, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a ALIGN=MIDDLE  ALT=\"a\"   DISABLED_style= \"max-width:90%; height:auto;\" > is hypotenuse; so, use Pythagorean theorem\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2=median%5E2%2B%28a%2F2%29%5E2 ALIGN=MIDDLE  ALT=\"a%5E2=median%5E2%2B%28a%2F2%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > ..............plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6cm=a ALIGN=MIDDLE  ALT=\"6cm=a\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286cm%29%5E2=median%5E2%2B%286cm%2F2%29%5E2 ALIGN=MIDDLE  ALT=\"%286cm%29%5E2=median%5E2%2B%286cm%2F2%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36cm%5E2=median%5E2%2B%283cm%29%5E2 ALIGN=MIDDLE  ALT=\"36cm%5E2=median%5E2%2B%283cm%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36cm%5E2-9cm%5E2=median%5E2 ALIGN=MIDDLE  ALT=\"36cm%5E2-9cm%5E2=median%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25cm%5E2=median%5E2 ALIGN=MIDDLE  ALT=\"25cm%5E2=median%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2825cm%5E2%29=median ALIGN=MIDDLE  ALT=\"sqrt%2825cm%5E2%29=median\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5cm=median ALIGN=MIDDLE  ALT=\"5cm=median\"   DISABLED_style= \"max-width:90%; height:auto;\" > => the length of each median; in an equilateral triangle all three median are congruent\r<BR>\n" );
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