document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1062306>Question 1062306</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have three questions to ask. Both are inter-related I think.<BR>\n" );
document.write( "1. Will three altitudes determine a triangle? Why?<BR>\n" );
document.write( "2. Will three medians determine a triangle? Why?<BR>\n" );
document.write( "3. How can I draw a triangles when only three altitudes are given? I already found how I can draw it using medians.<BR>\n" );
document.write( "I want a concrete proof for both of them. Sorry for my english if there are any mistakes. I'm not a native english speaker. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #677192 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(53765)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=677192\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "Regarding your questions #1 and #3, see these links\r<BR>\n" );
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document.write( "http://www.cut-the-knot.org/triangle/tr3.shtml\r<BR>\n" );
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document.write( "https://answers.yahoo.com/question/index?qid=20110520005044AAQiQMO \r<BR>\n" );
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document.write( "See also the book \"The secrets of Triangles\" by Posamentier and Lehmann, 2012, ISBN 978-1-61614-587-3, Example 14, p. 238.\r<BR>\n" );
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document.write( "Regarding your question #2, see this link\r<BR>\n" );
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document.write( "http://www.qc.edu.hk/math/Junior%20Secondary/Median.htm \r<BR>\n" );
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document.write( "and also the same book, Example 17, p. 247.\r<BR>\n" );
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document.write( "You can search for this book in your local library.\r<BR>\n" );
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document.write( "Also, you have this free of charge online textbook on Geometry\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson>GEOMETRY - YOUR ONLINE TEXTBOOK</A>\r<BR>\n" );
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document.write( "in this site. \r<BR>\n" );
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document.write( "In this online textbook, there are lessons on basic construction procedures in Geometry under these topics:\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Geometric constructions using a compass and a ruler. Basic operations</U>\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Geometric constructions related to parallel lines</U>\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>Geometric constructions related to circles </U>\r<BR>\n" );
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document.write( " </SPAN>\n" );
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