document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1196490>Question 1196490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat travels 200 km straight course at an angle 22^o due east of north. <BR>\n" );
document.write( "It then changes course by moving 80 km north before reaching its <BR>\n" );
document.write( "destination. Calculate the resultant displacement of the airplane. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #829336 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52803)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=829336\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "A boat travels 200 km straight course at an angle 22^o due east of north. <BR>\n" );
document.write( "It then changes course by moving 80 km north before reaching its <BR>\n" );
document.write( "destination. Calculate the resultant displacement of the airplane.<BR>\n" );
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document.write( "A boat or the airplane ?\r<BR>\n" );
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document.write( "Or both ?\r<BR>\n" );
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document.write( "<U>comment from student</U> : the boat, thank you.\r<BR>\n" );
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document.write( "<U>My response</U> : You have a triangle with two side lengths given as 200 km and 80 km <BR>\n" );
document.write( "and the angle between them of 180° - 22° = 158°.\r<BR>\n" );
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document.write( "Use the cosine law formula to get the length of the third side of the triangle.\r<BR>\n" );
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document.write( "It will give the answer to you.\r<BR>\n" );
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document.write( "On the Cosine law, &nbsp;see the lessons\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF= http://www.algebra.com/algebra/homework/Trigonometry-basics/Proof-of-the-Law-of-Cosines-revisited.lesson> Proof_of_the_Law_of_Cosines_Revisited</A> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF= http://www.algebra.com/algebra/homework/Trigonometry-basics/Solve-triangles-using-Law-of-Cosines.lesson> Solve triangles using Law of Cosines</A>\r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "In addition to the theory, &nbsp;clearly explained, &nbsp;you will find there many solved problems, &nbsp;that are your &nbsp;TEMPLATES.\r<BR>\n" );
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document.write( "Consider these lessons as your handbook, &nbsp;textbook, &nbsp;guidelines, &nbsp;tutorials and &nbsp;(free of charge) &nbsp;home teacher.\r<BR>\n" );
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document.write( "Happy learning &nbsp;(!)\r<BR>\n" );
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document.write( " </SPAN>\n" );
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