Definitions for

**"Concentric circles"**(4) Circles that have the same center but radii of different lengths.

circles with the same center.

Circles that lie in the same plane and have the same center.

Definitions for **"Concentric circles"**

(4) Circles that have the same center but radii of different lengths.

circles with the same center.

Circles that lie in the same plane and have the same center.