Concentric circles
Concentric circles.
Concentric circles.
The circles are "concentric".
They are concentric.
concentric 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 circle
concentric circles
Difficult to tell since there is nothing following. My guess is concentric, but that does not require the circles to be coplanar.
They are said to be concentric circles.
concentric