The shape of a circle is round. Circles are plane shapes that have all points that are the same distance from the center.
They are congruent circles
Close - they're called concentric circles.
When they have the same centre. As a consequence, the distance between the two circles, along any common radial ray, is a constant.
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
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 are circles that share the same center point, with each circle surrounding the other. Eccentric circles, on the other hand, do not share the same center point and are offset from each other. In simpler terms, concentric circles are like a target with multiple rings around a common center, while eccentric circles are like two circles that are not aligned at the same center point.
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.