Draggable demonstration of the midsegments of a triangle forming four congruent triangles

* Drag vertex C around.[br] 1) What do you notice about the length of line segment ED compared to line segment BC?[br][br]* Drag vertex A around.[br] 2) What do you notice about the length of line segment EF compared to line segment AC?[br][br]* Drag vertex B around.[br] 3) What do you notice about the length of line segment DF compared to line segment AB? [br][br]A [b]midsegment[/b] is the line segment connecting the midpoints of two sides of a [b]triangle. [/b]The blue lines represent the midsegments of the triangle.[br] 4) What general conclusion could you make about the midsegment of the triangle compared to the  third side of the triangle?