Cross an Angle
Can you construct the segment crossing the angle with the given midpoint? [br]Note that the angle and the location of point D are fixed. Given them, you must construct segment EF to have D as its midpoint.[br][br][b]Hint[/b]: This is a challenging problem. Try to add some strategic lines and drag the figure in the activity to see what would help to construct the segment EF at the right place.