document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=44208>Question 44208</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Should the triangle be solved beginning with Laws of Sines or Laws of Cosines.  Then solve the triangle and round to the nearest tenth.  A=16, b=13, c=10.\r<BR>\n" );
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document.write( "Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #29147 by </B><A HREF=/tutors/aboutme.mpl?userid=adamchapman><B>adamchapman(301)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamchapman><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=29147\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sine rule <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2FsinA=b%2FsinB=c%2FsinC ALIGN=MIDDLE  ALT=\"a%2FsinA=b%2FsinB=c%2FsinC\"   DISABLED_style= \"max-width:90%; height:auto;\" > can only be used effectively when you know an angle and the length opposite that angle and one other property (length or angle). Since we don't have this infromation, we have to use the cosine rule <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2=b%5E2%2Bc%5E2%2B2bc%2AcosA ALIGN=MIDDLE  ALT=\"a%5E2=b%5E2%2Bc%5E2%2B2bc%2AcosA\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "This gives us a=22.8 to the nearest tenth.<BR>\n" );
document.write( "Now we can use the sine rule:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22.78%2Fsin16=13%2FsinB=10%2FsinC%29 ALIGN=MIDDLE  ALT=\"22.78%2Fsin16=13%2FsinB=10%2FsinC%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This solves to give <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=arcsin%2813%2F22.78%29=34.8 ALIGN=MIDDLE  ALT=\"B=arcsin%2813%2F22.78%29=34.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "All the angles in any triangle add up to 180 degrees.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB%2BC=180 ALIGN=MIDDLE  ALT=\"A%2BB%2BC=180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16%2B34.8%2BC=180 ALIGN=MIDDLE  ALT=\"16%2B34.8%2BC=180\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=129.2 ALIGN=MIDDLE  ALT=\"C=129.2\"   DISABLED_style= \"max-width:90%; height:auto;\" >degrees.\r<BR>\n" );
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document.write( "I hope this helps<BR>\n" );
document.write( "P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk\r<BR>\n" );
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