\input{preamble-standalone.ltx} \begin{document} % Ex. No. 34 (Section 5.2.2 : Using \tkzcname{tkzDefBarycentricPoint} with three points) \begin{tikzpicture}[scale=.8] \tkzDefPoint(2,1){A} \tkzDefPoint(5,3){B} \tkzDefPoint(0,6){C} \tkzDefBarycentricPoint(A=1,B=1,C=1) \tkzGetPoint{M} \tkzDefMidPoint(A,B) \tkzGetPoint{C'} \tkzDefMidPoint(A,C) \tkzGetPoint{B'} \tkzDefMidPoint(C,B) \tkzGetPoint{A'} \tkzDrawPolygon(A,B,C) \tkzDrawPoints(A',B',C') \tkzDrawPoints(A,B,C,M) \tkzDrawLines[add=0 and 1](A,M B,M C,M) \tkzLabelPoint(M){$M$} \tkzAutoLabelPoints[center=M](A,B,C) \tkzAutoLabelPoints[center=M,above right](A',B',C') \end{tikzpicture} \end{document}