CPM Homework Help : INT1 Problem 8-120

$\overline{BE}$ is the midsegment of $ΔACD$ , shown below. What is the perimeter of $ΔACD$ ?
Triangle A,C,D, with point on side A,C, labeled, B, & point on side, A,D, labeled, e. Sides on triangle A,B,E, labeled as follows: A,B, 7, A,E, 6, B,E, 11.

Hint:

The perimeter of $ΔACD = (2)(\text{the perimeter of }ΔABE)$ because the midsegment cuts the sides in half.