Point E is the midpoint of Line segment A B and point F is the midpoint of Line segment C D . 3 intersecting lines are shown. A line has points C, E, F, D. Another line has points A, E, and B and intersects the other line at point E. Another line goes from point A to point F.

“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 .