Find the exact values for the lengths of the labeled segments a, b and p drawn in green, red, and blue, respectively. note that r = 4 is the radius of the circle, and s = 3 is the arc length from the point (4,0) around the circle to the indicated point.

It's pretty tough to do anything with this question when there are
no labels, no segments, no green, no red, no blue, no circle, no arc,
and no indicated point.  Was there some more that was supposed to
go along with it, like maybe perhaps possibly a drawing or a picture
of some sort ?