document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=203430>Question 203430</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, could you guide me about my mistake?<BR>\n" );
document.write( "What are the lengths of sides of an equilateral triangle of height 3 cm?<BR>\n" );
document.write( " My solution is: <BR>\n" );
document.write( "I regard if I intersect this triangle to two right triangles I can use of following formula which I remember of high school: <BR>\n" );
document.write( "Sin alpha = opposite side/hypotenuse <BR>\n" );
document.write( "I consider: Sin 60=h/c<BR>\n" );
document.write( "So I will have radical1/2= 3/c<BR>\n" );
document.write( "therefore    c =6   = a = b <BR>\n" );
document.write( "but its not ok cause 3^2 +^2 is not equal to 6^2! <BR>\n" );
document.write( "one more thing: could you tell me do I can use of Sin alpha = opposite side/hypotenuse <BR>\n" );
document.write( "and Cos alpha = adjacent side/hypotenuse for all the angles in a triangle? even for a right angle?  \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #153476 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=153476\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> think you have the wrong value for sin(60º) ___ it is [sqrt(3) / 2]\r<BR>\n" );
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document.write( "so, c = 6 / sqrt(3) or c = 2 sqrt(3)\r<BR>\n" );
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document.write( "yes, the general sin and cos equations are right<BR>\n" );
document.write( "___ but they DON'T work for the right angle because -- which side is adjacent? </SPAN>\n" );
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