\input{preamble-standalone.ltx} \begin{document} % Ex. No. 182 (Section 24.6 : \tkzcname{tkzDrawArc} et \tkzname{delta}) \begin{tikzpicture} \tkzInit \tkzDefPoint(0,0){A} \tkzDefPoint(5,0){B} \tkzDefPointBy[rotation= center A angle 60](B) \tkzGetPoint{C} \tkzSetUpLine[color=gray] \tkzDefPointBy[symmetry= center C](A) \tkzGetPoint{D} \tkzDrawSegments(A,B A,D) \tkzDrawLine(B,D) \tkzSetUpCompass[color=orange] \tkzDrawArc[delta=10](A,B)(C) \tkzDrawArc[delta=10](B,C)(A) \tkzDrawArc[delta=10](C,D)(D) \tkzDrawPoints(A,B,C,D) \tkzLabelPoints(A,B,C,D) \tkzMarkRightAngle(D,B,A) \end{tikzpicture} \end{document}