basil
saint basil
Saint Basil's Cathedral is a famous cathedral which sits near the epicentre of Moscow. It is a wonderful example of Russian architecture and is one of the most renowned constructions in the world.
The center of mass of a sphere is its geometric center.
The center of mass of a soccer ball is its geometric center.
The geometric center and the center of mass of the Earth are essentially the same point.
Center of mass of an equilateral triangle is located at its geometric center (centroid).
A point
No, the optical center of a lens is the point on the lens axis that is unaffected by refraction, while the geometric center is the physical center of the lens. The two may not coincide depending on the shape and design of the lens.
In both cases, because of their symmetry, the center of gravity is in the geometric center.
circle
If the cube is uniform ( ie it has uniform density) then the geometric center of the cube is its center of gravity.
All points equidistant from a center point.