For constructing a triangle with a given base, a base angle and difference between the other two sides, a ___ bisector is required.
To construct a triangle given its base, a base angle and the difference of the other two sides, there is only a single type of construction.
To construct a triangle given its base, a base angle and the difference of the other two sides, a perpendicular bisector needs to be drawn.
To construct a triangle, given its base, a base angle and sum of other two sides, the first step is to draw the base side and one given angle.