What elements of an [i]angle bisector[/i] do you want to click and drag to verify you have done the construction correctly?
What elements of a [i][u]parallel[/u] line through a given point[/i] do you want to click and drag to verify you have done the construction correctly?
What elements of a [i][u]perpendicular[/u] line through a given point[/i] do you want to click and drag to verify you have done the construction correctly?