Suppose ABC is an equilateral triangle and P is a point inside the triangle, such that PA = 3 cms., PB = 4 cms., and PC = 5 cms.
Then find the length of the side of the equilateral triangle.

Using Derive, solving for three equations based on Cartesian coordinates, yielded the side as ��(12*��3 +25).

Posted by Marc Scapelitte on 2005-01-11 05:45:35