document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1046923>Question 1046923</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, could you please find the value for a:\r<BR>\n" );
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document.write( "I know that the larger triangle has the angles of 18(given), 90 (angle between radii and tangent) and 72 (90-18) but I don't know where to go from there. <BR>\n" );
document.write( "Please show all working thanks. \r<BR>\n" );
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document.write( "diagram: http://imgur.com/a/Ix0Fp<BR>\n" );
document.write( "(ps. is there any other way to show a diagram on this website without using an external page?)\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #662404 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=662404\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72%5E2=0=o ALIGN=MIDDLE  ALT=\"72%5E2=0=o\"   DISABLED_style= \"max-width:90%; height:auto;\" > angle is a central angle in a circle.<BR>\n" );
document.write( "It is formed by two radii, and has its vertex at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O ALIGN=MIDDLE  ALT=\"O\"   DISABLED_style= \"max-width:90%; height:auto;\" > , the center of the circle<BR>\n" );
document.write( "The angle measuring <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5Eo ALIGN=MIDDLE  ALT=\"a%5Eo\"   DISABLED_style= \"max-width:90%; height:auto;\" > is an inscribed angle on the same circle.<BR>\n" );
document.write( "It has its vertex on the circle.<BR>\n" );
document.write( "They are both acute angles intercepting the same arc.<BR>\n" );
document.write( "in a case like that the measure of the inscribed angle is half of the measure of the central angle.<BR>\n" );
document.write( "So, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=72%2F2 ALIGN=MIDDLE  ALT=\"a=72%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28a=36%29 ALIGN=MIDDLE  ALT=\"highlight%28a=36%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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