\begin{tikzpicture}
  \tkzDefPoint["$A$" left](1,5){A}
  \tkzDefPoint["$B$" right](5,2){B}
  \tkzDefPointBy[rotation in rad= center A angle pi/3](B)
  \tkzGetPoint{C}

  \tkzDrawSegment(A,B)
  \tkzDrawPoints(A,B,C)
  \tkzCompass[color=red](A,C)
  \tkzCompass[color=red](B,C)

  \tkzLabelPoints(C)
\end{tikzpicture}
