drag the 3 points slide the sliders to change each one's mass mouse over the 3 points on the edge to find the ratios involved. note that (B/A) * (C/B) * (A/C) = 1
This project illustrates Ceva's Theorem via centers of mass based on http://www.cut-the-knot.org/Generalization/CevaPlus.shtml#ceva