document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=210445>Question 210445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if A= 42.2 degrees, B=13.6 degrees, and a=41.3,find the area of the triangle.round to the nearest tenth\r<BR>\n" );
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document.write( "a)138.8 sq units\r<BR>\n" );
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document.write( "b)493.8 sq units\r<BR>\n" );
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document.write( "c)327.4 sq units\r<BR>\n" );
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document.write( "d)246.9 sq units </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #159022 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=159022\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if A= 42.2 degrees, B=13.6 degrees, and a=41.3,find the area of the triangle.round to the nearest tenth\r<BR>\n" );
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document.write( "a)138.8 sq units\r<BR>\n" );
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document.write( "b)493.8 sq units\r<BR>\n" );
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document.write( "c)327.4 sq units\r<BR>\n" );
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document.write( "d)246.9 sq units\r<BR>\n" );
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document.write( "The first thing we have to do is find the measure of angle C.\r<BR>\n" );
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document.write( "Angle C = 180 - (13.6 + 42.2)\r<BR>\n" );
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document.write( "Angle C = 180 - 55.8\r<BR>\n" );
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document.write( "Angle C = 124.2\r<BR>\n" );
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document.write( "We now use the law of sines to find side b.\r<BR>\n" );
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document.write( "sinA/a = SinB/b\r<BR>\n" );
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document.write( "Sin42.2/41.3 = Sin13.6/b\r<BR>\n" );
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document.write( "Cross-multiply and divide to find b.\r<BR>\n" );
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document.write( "41.3(sin13.6) = sin42.2(b)\r<BR>\n" );
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document.write( "41.3(sin13.6)/sin42.2 = b\r<BR>\n" );
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document.write( "(9.711369271)/sin42.2 = b\r<BR>\n" );
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document.write( "14.46 = b\r<BR>\n" );
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document.write( "Now that we know angle C, a and b, we can use the following formula to find the area.\r<BR>\n" );
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document.write( "A = 1/2 *ab* sinC\r<BR>\n" );
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document.write( "A = 1/2 * (41.3)(14.46) * sin124.2\r<BR>\n" );
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document.write( "A = 246.9 sq. Units...CHOICE D </SPAN>\n" );
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