\input{preamble-standalone.ltx} \begin{document} % Ex. No. 173 (Section 23.1.5 : \tkzcname{tkzDrawSector} et \tkzname{R with nodes}) \begin{tikzpicture} [scale=.5] \tkzDefPoint(-1,-2){A} \tkzDefPoint(1,3){B} \tkzDefRegPolygon[side,sides=6](A,B) \tkzGetPoint{O} \tkzDrawPolygon[fill=black!10, draw=blue](P1,P...,P6) \tkzLabelRegPolygon[sep=1.05](O){A,...,F} \tkzDrawCircle[dashed](O,A) \tkzLabelSegment[above,sloped, midway](A,B){\(A B = 16m\)} \foreach \i [count=\xi from 1] in {2,...,6,1} {% \tkzDefMidPoint(P\xi,P\i) \path (O) to [pos=1.1] node {\xi} (tkzPointResult) ; } \tkzDefRandPointOn[segment = P3--P5] \tkzGetPoint{S} \tkzDrawSegments[thick,dashed,red](A,S S,B) \tkzDrawPoints(P1,P...,P6,S) \tkzLabelPoint[left,above](S){$S$} \tkzDrawSector[R with nodes,fill=red!20](S,2 cm)(A,B) \tkzLabelAngle[pos=1.5](A,S,B){$\alpha$} \end{tikzpicture} \end{document}