document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1110559>Question 1110559</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Circle O has a radius of 12. Points A and B are on the circle forming radii OA and OB. What is the length of line AB if measure of angle AOB = 120?\r<BR>\n" );
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document.write( "The answer is 12 square root of 3\r<BR>\n" );
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document.write( "Can somebody explain to me how to get to the answer.<BR>\n" );
document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #725560 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=725560\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Triangle AOB is isosceles, because AO and OB are radii of the circle.<br><BR>\n" );
document.write( "Let C be the point on AB such that OC is the perpendicular bisector of AB.<br><BR>\n" );
document.write( "Then triangles AOC and BOC are 30-60-90 right triangles, with OC the short leg.<br><BR>\n" );
document.write( "That means OC=6; then AC = BC = 6*sqrt(3), so AB = 12*sqrt(3). </SPAN>\n" );
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