document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1177768>Question 1177768</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Before Apollo 11 landed on the moon, it completed an orbit at a distance of 3 miles from the surface. At one point along this trajectory, the onboard guidance system measured depression angles to opposite edges of a large crater. If the angle measures were 25° and 18°, find the distance between the edges of the crater. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #806867 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=806867\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> tan <BR>\n" );
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document.write( "tan25 = 3/y \r<BR>\n" );
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document.write( "y=3/tan 25\r<BR>\n" );
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document.write( "x+y = 3 /tan 18\r<BR>\n" );
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document.write( "y= 3/tan18   -x\r<BR>\n" );
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document.write( "3/tan 18-x =3/ tan 25\r<BR>\n" );
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document.write( "x= 3/tan 18 - 3/tan 25\r<BR>\n" );
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document.write( "=9.37 - 6.38 = 2.95 miles \r<BR>\n" );
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document.write( "distance between the edges of the crater=2.95 miles </SPAN>\n" );
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