document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154620>Question 1154620</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 15.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777098 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=777098\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Technically, the question can't be answered, because we are not told that the segment of length 10 is a diameter....<br><BR>\n" );
document.write( "Assuming it is, the radius of the circle is 5, so the area of the whole circle is 25pi.<br><BR>\n" );
document.write( "The given angle is 72 degrees, so the central angle of the shaded region is 180-72 = 108 degrees.<br><BR>\n" );
document.write( "The area of the shaded region is then 108/360 of the area of the whole circle.<br><BR>\n" );
document.write( "Use a calculator and express the answer in the required form.<br><BR>\n" );
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