\setlength{\unitlength}{0.5cm}
\begin{center}
\begin{Picture}(-5.5,-5.5)(5.5,5,5)
\renewcommand{\axeslabelsize}{\footnotesize}
\cartesianaxes(-5,-5)(5,5)
\pictcolor{gray}
\circularArc{3}{\numberPI}{\numberTWOPI}
\pictcolor{red}
\xLINE(-2,2)(-2,5)
\xLINE(-2,2)(-5,2)
\degreesangles
\Put(-2,2){\circularArc{1}{90}{180}}
\pictcolor{blue}
\polarreference
\Put(1,30){\xLINE(0,0)(4,30)}
\Put(1,30){\xLINE(0,0)(4,60)}
\Put(1,30){\circularArc{2}{30}{60}}
\end{Picture}
\end{center}
