document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1095139>Question 1095139</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ABC is an equilateral triangle in which BC=2cm find perpendicular distance from A to BC </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #745421 by </B><A HREF=/tutors/aboutme.mpl?userid=Quadratic1600><B>Quadratic1600(28)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Quadratic1600><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=Quadratic1600><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=745421\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi\r<BR>\n" );
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document.write( "So we know that all sides are the same so AB - BC - AC are all 2cm\r<BR>\n" );
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document.write( "If you draw a line from A perpendicularly to BC it will meet at a 90 degree angle. So lets call the point where the line from A meets BC (E)\r<BR>\n" );
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document.write( "So BE = 1 and CE = 1\r<BR>\n" );
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document.write( "So we have the hypotenuse of either AC or AB depending which side of the triangle you choose to work on - It doesn't matter really as they are both 2\r<BR>\n" );
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document.write( "So a^2 + b^2 = c^2 which is also the adjacent^2 + opposite^2 = Hypotenuse^2\r<BR>\n" );
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document.write( "We know the hypotenuse so lets rearrange so we get\r<BR>\n" );
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document.write( "(2^2) (which is the hypotenuse) - (1^2) (which is the line BE or CE depending on which side you are drawing it) = AE\r<BR>\n" );
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document.write( "Ok so\r<BR>\n" );
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document.write( "4 - 1 = 3\r<BR>\n" );
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document.write( "Now SQR of 3 = AE\r<BR>\n" );
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document.write( "You will get a positive and negative value as you are square rooting however you can't have a minus side so it will be the positive value.\r<BR>\n" );
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document.write( "Hope this helps </SPAN>\n" );
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