\begin{tikzpicture}[scale=.75] \tkzDefPoints{0/0/A,4/0/B,1/1/D,2/0/E} \tkzDefTriangle[equilateral](A,B) \tkzGetPoint{C} \tkzDrawCircle(C,A) \tkzInterLC[with nodes](D,E)(C,A,B) \tkzGetPoints{F}{G} \tkzDrawPolygon(A,B,C) \tkzDrawPoints(A,...,G) \tkzDrawLine(F,G) \end{tikzpicture}