\input{preamble-standalone.ltx} \begin{document} % Ex. No. 191 (Section 22.6.2 : Example of the use of \tkzcname{tkzFindSlopeAngle}) \begin{tikzpicture} \tkzInit \tkzDefPoint(0,0){A} \tkzDefPoint(3,2){B} \tkzDefLine[mediator](A,B) \tkzGetPoints{I}{J} \tkzCalcLength[cm](A,B) \tkzGetLength{dAB} \tkzFindSlopeAngle(A,B) \tkzGetAngle{tkzangle} \begin{scope}[rotate=\tkzangle] \tikzset{arc/.style={color=gray,delta=10}} \tkzDrawArc[orange,R,arc](B,3/4*\dAB)(120,240) \tkzDrawArc[orange,R,arc](A,3/4*\dAB)(-45,60) \tkzDrawLine(I,J) \tkzDrawSegment(A,B) \end{scope} \tkzDrawPoints(A,B,I,J) \tkzLabelPoints(A,B) \tkzLabelPoints[right](I,J) \end{tikzpicture} \end{document}