document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=634927>Question 634927</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the area of a regular octagon with a 18.7 m apothem and a side length of 15.5 m\r<BR>\n" );
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document.write( "Which answer is it?\r<BR>\n" );
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document.write( "a. 145.0 m^2\r<BR>\n" );
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document.write( "b. 1059.4 m^2\r<BR>\n" );
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document.write( "c. 1159.4 m^2\r<BR>\n" );
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document.write( "d. 2318.8 m^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399989 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=399989\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Imagine you cut the octagon into triangles by drawing segments from the center to the vertices.\r<BR>\n" );
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document.write( "Area of one triangle (in the octagon):\r<BR>\n" );
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document.write( "A = (bh)/2\r<BR>\n" );
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document.write( "A = (15.5*18.7)/2\r<BR>\n" );
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document.write( "A = 144.925\r<BR>\n" );
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document.write( "So one triangle has an area of 144.925 m^2. This means that 8 of these equal triangles have a total area of 8*144.925 = <font color=\"red\">1159.4 m^2</font> </SPAN>\n" );
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