document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1117484>Question 1117484</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a circle a chord 30 inches long is parallel to a tangent and bisects the radius drawn to the point of tangency. How long is the radius? \r<BR>\n" );
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document.write( "Answer is 10&#8730; 3... but confused on how\r<BR>\n" );
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document.write( "So I know the radius gets bisected by the chord, does the chord split into 15? How do you find the radius? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #732574 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=732574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "The tangent has to be perpendicular to the radius at the point of tangency, and since the chord is parallel to the tangent, the chord is perpendicular to the radius.  Therefore the radius bisects the chord, and, in this case it is given that the chord bisects the radius. See http://www.dentonisd.org/cms/lib/TX21000245/Centricity/Domain/926/Circle%20Theorems.pdf\r<BR>\n" );
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document.write( "Construct a radius to one endpoint of the chord.  This forms a right triangle with sides of 15 and <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \frac{r}{2}\"> and a hypotenuse of <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large r\">.  Use Pythagoras to set up an equation in <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large r\"> and solve.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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