document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154562>Question 1154562</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" );
document.write( "0<BR>\n" );
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 #777011 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777011\">put this solution on YOUR website!</A><BR><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 -----  I'll assume you mean 90 degs ----<BR>\n" );
document.write( "angle with the sidewalk. The base of the ladder makes a 50 degree angle with the sidewalk. ------ Dangerous arrangement. ------<BR>\n" );
document.write( "==============================<BR>\n" );
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 after the decimal, except for whole numbers.<BR>\n" );
document.write( "a) How long is the ladder?<BR>\n" );
document.write( "L = ladder's length<BR>\n" );
document.write( "cos(50) = 12/L<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "b) How high up the wall does the ladder reach?<BR>\n" );
document.write( "h = L*sin(50)<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "c) What angle does the ladder make with the wall?<BR>\n" );
document.write( "Think about it.<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "d) Please - draw a diagram and show all calculations.<BR>\n" );
document.write( "No.<BR>\n" );
document.write( "------------------<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.<BR>\n" );
document.write( "sin(angle) = cos(90 - angle)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );