Posted by echus on Monday, October 3, 2011 at 3:26pm.
Here is a formula in terms of the three sides:
If the sides have length a, b, c, we define the semiperimeter s to be half their sum, so s = (a+b+c)/2. Given this, the radius is given using the following:
rHere is a formula in terms of the three sides:
If the sides have length a, b, c, we define the semiperimeter s to be half their sum, so s = (a+b+c)/2. Given this, the radius is given using the following:
r² = (s - a)*(s - b)*(s - c) / s