A circle
A solid sphere perhaps?
A circle or sphere.
A circle or a sphere
Sphere
They are called equidistant points and form points on a sphere for a solid or a circle on a plane figure.
Sphere
circle
A solid sphere perhaps?
if it's a circle, all points are equidistant from the center.
A circle.
A sphere
a sphere
vertices
A circle or sphere.
A circle or a sphere
A circle.
Circle.