In the diagram below of triangle ABC, D is a midpoint of AB and E is a midpoint of BC . If DE=4x+4, and AC=x+36, what is the measure of DE?

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

The answer is 30 minutes to an hour