Triangle ABC has a mid point, D, for segment AB. E is the midpoint for BC. If BD = 6 and DE = 11 , what is the length of segment AC

Question

I do not recall learning this through out highschool

Answer 1

DE is a midsegment  since it connects two midpoints. Thus, it is half the length of the third side.

DE = (1/2)AC

11 = (1/2)AC

22 = AC