\documentclass[border=3mm]{standalone}
\usepackage{tkz-graph} 
\begin{document}
\begin{tikzpicture}[scale=1.75] 
  \GraphInit[vstyle=Art] 
  \Vertex{A}
  \Vertex[x=4,y=0]{B} 
  \Vertex[x=1,y=2]{C} 
  \Edge[style={bend left}](B)(A) 
  \Edges(A,B,C,A)
\end{tikzpicture}
\end{document}