document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=802642>Question 802642</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The measures of the sides of a triangle are 10, 7, and 9. Find the measure of the largest angle to the nearest degree  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484049 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=484049\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Triangles that are not right triangles can be solved by<BR>\n" );
document.write( "Law of Sines (if you have or can get one side and the opposite angle)<BR>\n" );
document.write( "or<BR>\n" );
document.write( "Law of Cosines (otherwise).<BR>\n" );
document.write( " <BR>\n" );
document.write( "Law of Cosines:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-1%2C12%2C-1%2C12%2C%0D%0Atriangle%280%2C0%2C9%2C0%2C1.67%2C6.8%29%2C%0D%0Alocate%28-0.3%2C-0.05%2CA%29%2Clocate%284%2C0%2Cc%29%2C%0D%0Alocate%289.3%2C-0.05%2CB%29%2Clocate%281.4%2C7.5%2CC%29%2C%0D%0Alocate%285%2C4.4%2Ca%29%2Clocate%280.3%2C3.4%2Cb%29%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2=b%5E2%2Bc%5E2=2ab%2Acos%28A%29 ALIGN=MIDDLE  ALT=\"a%5E2=b%5E2%2Bc%5E2=2ab%2Acos%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The law of cosines can be used to find angle A when we just have the lengths of the 3 sides.<BR>\n" );
document.write( "The largest angle is the one opposite the longest side, so in a triangle with side lengths 7,9,and 10, the largest angle will be opposite the side with length 10.<BR>\n" );
document.write( "So we set <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=10 ALIGN=MIDDLE  ALT=\"a=10\"   DISABLED_style= \"max-width:90%; height:auto;\" > and try to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A ALIGN=MIDDLE  ALT=\"A\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%5E2=7%5E2%2B9%5E2-2%2A7%2A9%2Acos%28A%29 ALIGN=MIDDLE  ALT=\"10%5E2=7%5E2%2B9%5E2-2%2A7%2A9%2Acos%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100=49%2B81-126cos%28A%29 ALIGN=MIDDLE  ALT=\"100=49%2B81-126cos%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=100=130-126cos%28A%29 ALIGN=MIDDLE  ALT=\"100=130-126cos%28A%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=126cos%28A%29=130-100 ALIGN=MIDDLE  ALT=\"126cos%28A%29=130-100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=126cos%28A%29=30 ALIGN=MIDDLE  ALT=\"126cos%28A%29=30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cos%28A%29=30%2F126=about0.2381 ALIGN=MIDDLE  ALT=\"cos%28A%29=30%2F126=about0.2381\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=76.2%5Eo ALIGN=MIDDLE  ALT=\"A=76.2%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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