document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=261100>Question 261100</A>: <I><SPAN STYLE=\"word-break: break-all;\">  In a triangle ABC, angle B is 3 times angle A and angle C is 18 less than 6 times angle A. find the size of the angles. The size of angle A is? The size of angle B is? The size of angle C is? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #192362 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=192362\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Tahoma\" size=1.5><BR>\n" );
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document.write( "We know that angles in a triangle equal 180 deg.\r<BR>\n" );
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document.write( "Then it follows, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB%2BC=180%5Eo ALIGN=MIDDLE  ALT=\"A%2BB%2BC=180%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Working Eqn.\r<BR>\n" );
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document.write( "Let us see the conditions:<BR>\n" );
document.write( "Angle B is 3 times angle A: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=3A ALIGN=MIDDLE  ALT=\"B=3A\"   DISABLED_style= \"max-width:90%; height:auto;\" >, condt'n 1\r<BR>\n" );
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document.write( "Angle C is 18 less than 6 imes angle A: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=6A-18 ALIGN=MIDDLE  ALT=\"C=6A-18\"   DISABLED_style= \"max-width:90%; height:auto;\" >, condt'n 2\r<BR>\n" );
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document.write( "Substitute the conditions in our Working Eqn:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2Bred%283A%29%2Bred%286A-18%29=180%5Eo ALIGN=MIDDLE  ALT=\"A%2Bred%283A%29%2Bred%286A-18%29=180%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10A=180%2B18=198 ALIGN=MIDDLE  ALT=\"10A=180%2B18=198\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%2810%29A%2Fcross%2810%29=cross%28198%2919.8%2Fcross%2810%29 ALIGN=MIDDLE  ALT=\"cross%2810%29A%2Fcross%2810%29=cross%28198%2919.8%2Fcross%2810%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28A=19.8%5Eo%29 ALIGN=MIDDLE  ALT=\"red%28A=19.8%5Eo%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, Answer\r<BR>\n" );
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document.write( "Let's check by substituting in the condt'ns.<BR>\n" );
document.write( "Condt'n 1: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B=3%2819.8%29=59.4%5Eo ALIGN=MIDDLE  ALT=\"B=3%2819.8%29=59.4%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Condt'n 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C=6%2819.8%29-18=-118.8-18=100.8%5Eo ALIGN=MIDDLE  ALT=\"C=6%2819.8%29-18=-118.8-18=100.8%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Then via Working Eqn:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB%2BC=180%5Eo ALIGN=MIDDLE  ALT=\"A%2BB%2BC=180%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=19.8%2B59.4%2B100.8=180%5Eo ALIGN=MIDDLE  ALT=\"19.8%2B59.4%2B100.8=180%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180%5Eo=180%5Eo ALIGN=MIDDLE  ALT=\"180%5Eo=180%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font>\r<BR>\n" );
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document.write( " </SPAN>\n" );
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