Answer:
0
Step-by-step explanation:
By Theorem 10.2, in the same circle or congruent circles, if two chords are equal, then their corresponding minor arcs are congruent. Concentric circles have the same center but the circles do not intersect. Therefore, the number of points shared by concentric circles is 0.
Zero,
Concentric means they all share the same center point. circles within circles. none ever touches another.