Concentric circles
Concentric circles.
They are concentric.
Congruent circles, maybe...
same circle or congruent circles
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.
Concentric circles have the same center. They are not necessarily the same size. If two concentric circles have the same area, then they are congruent, meaning they coincide when superimposed.
Concentric circles.
Are congruent circles.
They are said to be concentric circles.
Concentric circles
Yes.
Congruent circles
Concentric circles are the circles with the same center therefore they do not cross with each other as the "center is not considered a point on the circle". An exception would be two circles that are concentric and have the same radius, in which case the circles are indistinct and every point of the circles is an intersection.
Concentric circles
Concentric circles.
concentric