document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=779348>Question 779348</A>: <I><SPAN STYLE=\"word-break: break-all;\"> show that the points A= (1,5) B= (2,4) C= (-3,5) lie on a circle with center (-1,2). What is the radius of this circle?<BR>\n" );
document.write( "Please and thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475206 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=475206\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> show that the points A= (1,5) B= (2,4) C= (-3,5) lie on a circle with center <BR>\n" );
document.write( "(-1,2). What is the radius of this circle?<BR>\n" );
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document.write( "Show that (-1,2) is the same distance for A, from B, and from C<BR>\n" );
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document.write( "(-1,2) to A::: sqrt((1--1)^2+(2-5)^2) = sqrt[4+9] = sqrt(13)<BR>\n" );
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document.write( "(-1,2) to B::: sqrt[(-1-2)^2+(2-4)^2] = sqrt(9 + 4) = sqrt(13)<BR>\n" );
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document.write( "(-1,2) to C::: sqrt[(-3--1)^2 + (5-2)^2] = sqrt(16 + 9) = sqrt(25) = 5<BR>\n" );
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document.write( "They are not on a circle with center at (-1,2)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============= </SPAN>\n" );
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