To find the value of in the given diagram, let's start by labeling the vertices of each of the triangles.
Looking at the markings, we can note a couple of key relationships.
This means that
are the of
is a of
The tells us that, if a segment joins the midpoints of two sides of a triangle, then the segment is
as long as the third side.
Finally, we will substitute the given values into this equation to find