1)
The bisector is the midpoint of the curved line. To find it, place the compass at point A. Open it and draw an arc on both sides.
Without altering the compass, place it at point B and draw arcs on both sides to intersect the previous arcs.
Mark the two points of intersection. Draw a line touching both points. The point where the line touches line AB is the bisector
The sample is shown below
Point C is the bisector
