document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1141295>Question 1141295</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Explain why it's true\r<BR>\n" );
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document.write( "Given: Points A,B and C lie on Circle Q in such a way that arc measures AB=BC;<BR>\n" );
document.write( "Also, chords AB, BC, AND AC (no drawing provided)\r<BR>\n" );
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document.write( "Prove: ΔABC must be an isosceles triangle </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #761852 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=761852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Draw this out and notice that angle A is an inscribed angle that is 1/2 the arc measure BC<BR>\n" );
document.write( "Angle C is an inscribed angle with (1/2) the arc measure AB. <BR>\n" );
document.write( "The arc measures are equal, so the inscribed angles are equal.<BR>\n" );
document.write( "Those angles are two of the angles of the triangle ABC. <BR>\n" );
document.write( "Therefore, ABC is an isosceles triangle. </SPAN>\n" );
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