Group theory is of particular significance to the study of objects having plenty of symmetry. The sphere is a good example; its self-equivalences include arbitrary rotations in three dimensions about the centre.
Notice that for any two points on the sphere, there is a self-equivalence (i.e., rotation) taking one of the points to the other.
The sphere is homogeneous, a technical word meaning "having lots of symmetry"! A special role is played by the set of self-equivalences fixing a single point (in this case, the rotations about a fixed axis); it is called the isotropy subgroup of the symmetry.
A sphere has an infinite number of lines of symmetry
Sphere
A sphere has an infinite number of planes of symmetry. The plane must include the center of the sphere, but it can tilt at any angle. The question is the same as asking "How many planes can be drawn through one point ?" The answer is: An infinite number. And as long as the point is the center of the sphere, each plane is a plane of symmetry of the sphere.
a circle or a sphere
A sphere has rotational symmetry of an infinite degree.
A ball (sphere) has an infinite number lines of symmetry.
A sphere has one point of symmetry (at its very center) if one considers rotational symmetry in its three dimensions. If one is only considering reflectional symmetry, it would have an infinite number of lines of symmetry.
It have a ninfinite number...
A sphere has an infinite number of lines of symmetry. It can be split in any direction from any angle, and the resulting parts will be symmetrical.
sphere
Only one - its centre.
Yes, it has infinite numbers of lines of symmetry.