\input{preamble-standalone.ltx} \begin{document} % Ex. No. 155 (Section 19.3.1 : Use of \tkzcname{tkzDrawSemiCircle}) \begin{tikzpicture} \tkzDefPoint(0,0){A} \tkzDefPoint(6,0){B} \tkzDefSquare(A,B) \tkzGetPoints{C}{D} \tkzDrawPolygon(B,C,D,A) \tkzDefPoint(3,6){F} \tkzDefTriangle[equilateral](C,D) \tkzGetPoint{I} \tkzDefPointBy[projection=onto B--C](I) \tkzGetPoint{J} \tkzInterLL(D,B)(I,J) \tkzGetPoint{K} \tkzDefPointBy[symmetry=center K](B) \tkzGetPoint{M} \tkzDrawCircle(M,I) \tkzCalcLength(M,I) \tkzGetLength{dMI} \tkzFillPolygon[color = red!50](A,B,C,D) \tkzFillCircle[R,color = yellow](M,\dMI pt) \tkzDrawSemiCircle[fill = blue!50!black](F,D)% \end{tikzpicture} \end{document}