\begin{tikzpicture} \clip (0,0) circle (2cm); \coordinate (o) at (0,0); \coordinate (A) at (2,0); \coordinate (p) at (90:.4); \coordinate (q) at (50:1.6); \coordinate (r) at (300:1.4); \tkzDrawCircle[dashed,color=blue](o,A) \hyperpbisector{p}{q}{o}{A}; \hyperpbisector{p}{r}{o}{A}; \hyperpbisector{q}{r}{o}{A}; \tkzDrawPoints[size=4,fill=red](p,q,r) \tkzLabelPoints(q) \tkzLabelPoints[right](p,r) \draw (-1,.4) node{\(L_{qr}\)}; \draw (-1,-1.2) node{\(L_{pr}\)}; \draw (0,1.4) node{\(L_{pq}\)}; \end{tikzpicture}