document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=40678>Question 40678</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ok, there is a picture of a triangle ABC with a straight perpendicular line. The diagram shows the markings for constructing the altitude of ABC. this is based on which of the following consructions?<BR>\n" );
document.write( "A. construct a ray that bisects a given angle.<BR>\n" );
document.write( "B. construct the perpendicular bisector of a given line segment.<BR>\n" );
document.write( "C. Construct a point equidistant from the endpoints of a given line segment.<BR>\n" );
document.write( "D. constrcut a linge through a given point and perpendicular to a given line segment.<BR>\n" );
document.write( "I am told the answer is D, but I do not understand why. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #26198 by </B><A HREF=/tutors/aboutme.mpl?userid=astromathman><B>astromathman(21)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=astromathman><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=astromathman><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=26198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An altitude of a triangle is defined as the perpendicular from any one vertex to the line containing the opposite side.  Therefore you need to be able to construct a perpendicular to a line through a point not on the line. </SPAN>\n" );
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