\input{preamble-standalone.ltx} \begin{document} % Ex. No. 226 (Section 29.2 : The circular protractor, transparent and returned) \begin{tikzpicture}[scale=.5] \tkzDefPoint(2,3){A} \tkzDefShiftPoint[A](31:5){B} \tkzDefShiftPoint[A](158:5){C} \tkzDrawSegments[color=red,line width=1pt](A,B A,C) \tkzProtractor[return](A,C) \end{tikzpicture} \end{document}