\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}