document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=266816>Question 266816</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When a 757 passenger jet begins its descent to the Ronald Regan International Airport in Washington, D.C, it is 3900 feet from the ground. Its angle of descent is 6 degrees. <BR>\n" );
document.write( "A.	What is the plane’s ground distance to the air port?<BR>\n" );
document.write( "B.	How far must the plane fly to reach the runway? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #195972 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=195972\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When a 757 passenger jet begins its descent to the Ronald Regan International Airport in Washington, D.C, it is 3900 feet from the ground. Its angle of descent is 6 degrees.<BR>\n" );
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document.write( "Draw the picture: A right triangle with angle at the ground = 6 degrees<BR>\n" );
document.write( "and side opposite = 3900 ft.<BR>\n" );
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document.write( "A. What is the plane’s ground distance to the air port?<BR>\n" );
document.write( "tan(6 degrees) = 3900/x<BR>\n" );
document.write( "x = 3900/tan(6 degrees) = 37,106 ft<BR>\n" );
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document.write( "B. How far must the plane fly to reach the runway?<BR>\n" );
document.write( "sin(6 degrees) = 3900/r<BR>\n" );
document.write( "r = 3900/sin(6) = 37,310.4 ft<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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