\begin{tikzpicture}
                \clip(0,0) circle (2.2cm);
                \tkzDefPoint(0,0){o}
                \tkzDefPoint(2,0){A}
                \tkzDefPoint(-2,0){B}
                \tkzDefPoint(110:1.6){q}
                \tkzDefPoint(290:2.5){qa}
                \tkzDefPoint(0:1.1){r}
                \tkzCircumCenter(q,qa,r)\tkzGetPoint{c}
                \tkzDrawArc[color=black](c,r)(q)
                \tkzDrawCircle[solid,color=brown](o,A)
                \draw (o)--node[below]{\(a\)} (r);
                \draw (o)--node[left]{\(b\)} (q);
                \draw (65:1.3) node{\(c\)};
                \draw[thick,->](89:2)--(90:2);
                \draw[thick,->](269:2)--(270:2);
                \tkzDrawPoints(A,B)
                \tkzDrawPoints[fill=red](o,r,q)
                \tkzLabelPoints[left](q)
                \tkzLabelPoints[right](r)
                \draw (q)++(315:.4) node{$\alpha$};
                \draw (o)++(60:.25) node{$\gamma$};
                \draw (r)++(155:.4) node{$\beta$};
                \fill[fill=blue,opacity=0.1] (o) to (q) to [bend left=23] (r) to (o);
                \tkzLabelPoint[below](o){\(0\)}
\end{tikzpicture}