Help with text in tikzpicture

[loud lodge]

How can I write the a, b and c in their respective edge AB, BC and CA?

[timber coral]

\begin{tikzpicture}
    \draw 
        (0, 0) node[anchor=north east] {A} 
    to node[anchor=north] {c} 
        (3, 0) node[anchor=north west] {B} 
    to node[anchor=west] {a}
        (3, 4) node[anchor=south] {C}
    to node[anchor=south east] {b}
        cycle;
\end{tikzpicture}