\input{preamble-standalone.ltx} \begin{document} % Ex. No. 170 (Section 20.3.3 : An isosceles triangle.) \begin{tikzpicture}[rotate=120,scale=.75] \tkzDefPoint(1,2){A} \tkzDefPoint(4,0){B} \tkzInterCC[R](A,4cm)(B,4cm) \tkzGetPoints{C}{D} \tkzDrawCircle[R,dashed](A,4 cm) \tkzDrawCircle[R,dashed](B,4 cm) \tkzCompass[color=red](A,C) \tkzCompass[color=red](B,C) \tkzDrawPolygon(A,B,C) \tkzDrawPoints[color=blue](A,B,C) \tkzMarkSegments[mark=s|](A,C B,C) \tkzLabelPoints[](A,B) \tkzLabelPoint[above](C){$C$} \end{tikzpicture} \end{document}