document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154559>Question 1154559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On a flat sidewalk, you lean a ladder against a wall. The base of the wall makes a 900<BR>\n" );
document.write( "angle with the sidewalk. The base of the ladder makes a 50 degree angle with the sidewalk.<BR>\n" );
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document.write( "You measure the distance from the base of the ladder to the wall and it is 12 feet.<BR>\n" );
document.write( "Answer each of the following questions please. Clearly indicate your answers with 5 digits<BR>\n" );
document.write( "after the decimal, except for whole numbers.<BR>\n" );
document.write( "a) How long is the ladder?<BR>\n" );
document.write( "b) How high up the wall does the ladder reach?<BR>\n" );
document.write( "c) What angle does the ladder make with the wall?<BR>\n" );
document.write( "d) Please - draw a diagram and show all calculations.<BR>\n" );
document.write( "e) Explain whether any two angles in your diagram represent a cofunction and<BR>\n" );
document.write( "prove your statement with values of sine and cosine </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777021 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=777021\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=mananth&illustration_name=ladder.png\">.\r<BR>\n" );
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document.write( "a) How long is the ladder?\r<BR>\n" );
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document.write( "cos 50 = 12/ladder length<BR>\n" );
document.write( "ladder length =12/cos 50<BR>\n" );
document.write( "=18.66868 ft\r<BR>\n" );
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document.write( "b) How high up the wall does the ladder reach?<BR>\n" );
document.write( "sin 50 = wall height /18.66868<BR>\n" );
document.write( "ladder reaches 14.30104 ft\r<BR>\n" );
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document.write( "c) What angle does the ladder make with the wall?\r<BR>\n" );
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document.write( "40 deg<BR>\n" );
document.write( "d) Please - draw a diagram and show all calculations.<BR>\n" );
document.write( "e) Explain whether any two angles in your diagram represent a cofunction and<BR>\n" );
document.write( "prove your statement with values of sine and cosine.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );