Q: What are circles called with the same centre points?

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The shape of a circle is round. Circles are plane shapes that have all points that are the same distance from the center.

Close - they're called concentric circles.

They are congruent circles

No not all circles have the same centre. If the circles formula is in the form x2+ y2=r2 then the centre is always the origin= (0,0). But if the formula for the circle is in the form (x-h)2+(y-k)2= r2 then the centre is the the opposite sign of the h and the k. Eg. (x+4)2+(y-9)2=16 the centre would be (-4,9) and the radius would be 4

When they have the same centre. As a consequence, the distance between the two circles, along any common radial ray, is a constant.

Related questions

Concentric circles are circles with the same common centre.

Concentric circles

If you mean they both have the same centre - they're called 'concentric' circles.

Concentric circles have the same centre point while eccentric circles although being within each other have differing centre points[the inner cirles are off centre].

No. Concentric circles have the same centre but not [usually] the same radius. Congruent circles have the same radius, but not [usually] the same centre. If you have two concentric congruent circles one will be exactly on top of the other.

No. You can only define a circle by radius, diameter, area, perimeter. Concentric circles have the same centre, therefore, if they were the same circles with the same radius, then they would all lie on top of each other and be effectively one circle.

The shape of a circle is round. Circles are plane shapes that have all points that are the same distance from the center.

The outside of the circle is always the same distance from the centre. The outside of an ellipse is not the same distance from the centre all the way round.

Yes, it is. Circles that are in the same plane and having the same center are called congruent circles.

concentric circles

They are congruent circles

Close - they're called concentric circles.