A circle is a plane figure consisting of a curve in which every point is equidistant from a fixed point called the center.
a globe.
A plane curve all equidistant from a given fixed point, the center.
That point which is equidistant from every point on the circumference. It's just called the center.
A circle.
The center of the circle. That's how the circle is defined. (The collection of all points on a plane equidistant from a fixed point. The fixed point is the center and the fixed distance is the radius.)
A sphere is a solid figure in which every point is equidistant from a fixed point called the center.
A circle is a plane figure consisting of a curve in which every point is equidistant from a fixed point called the center.
A circle.
That set of points forms what is known as a "circle".
a globe.
a sphere
A plane curve all equidistant from a given fixed point, the center.
That point which is equidistant from every point on the circumference. It's just called the center.
A circle.
A circle is a closed curve where all points are equidistant from a fixed point called the center. It is a two-dimensional shape with no corners or edges.
A circle, or arc thereof.