Question

Concentric circles have

• A. common centre and different radii.
• B. common centre and same radii.
• C. different centre and different radii.
• D. different centre and same radii.

Answer 1

The correct option is A common centre and different radii.

Circles drawn on a plane with a common centre and different radii are called concentric circles. For example, when a small stone was dropped in still water, we see circular ripples. The ripples formed are concentric circles.