AMC 8 2009 Problem 19

Two angles of an isosceles triangle measure $70^\circ$ and $x^\circ$. What is the sum of the three possible values of $x$? $\textbf{(A)}\ 95 \textbf{(B)}\ 125 \textbf{(C)}\ 140 \textbf{(D)}\ 165 \textbf{(E)}\ 180$