document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1105670>Question 1105670</A>: <I><SPAN STYLE=\"word-break: break-all;\">  How do you find the radius of a  circle inscribed in a scalene triangle  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #720539 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=720539\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the sides have length a, b, c, we define the semi-perimeter s to be half their sum, so s = (a+b+c)/2. Given this, the radius is<BR>\n" );
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document.write( "r^2 = (s - a)*(s - b)*(s - c) / s<BR>\n" );
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document.write( "Take the square root of this expression to find r<BR>\n" );
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document.write( "Here we are using Heron's formula to derive the formula for r^2, namely<BR>\n" );
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document.write( "A = s * r<BR>\n" );
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