\input{preamble-standalone.ltx} \begin{document} % Ex. No. 194 (Section 23.1.3 : \tkzcname{tkzDrawSector} and \tkzname{R}) \begin{tikzpicture}[scale=1.25] \tkzDefPoint(0,0){O} \tkzDefPoint(2,-1){A} \tkzDrawSector[R,draw=white,% fill=red!50](O,2cm)(30,90) \tkzDrawSector[R,draw=white,% fill=red!60](O,2cm)(90,180) \tkzDrawSector[R,draw=white,% fill=red!70](O,2cm)(180,270) \tkzDrawSector[R,draw=white,% fill=red!90](O,2cm)(270,360) \end{tikzpicture} \end{document}