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Concentric spheres are a set of spheres that share a common center and have different radii. This means that all the spheres are nested inside each other, with the smallest sphere at the center and the largest sphere on the outside.
A concentric sphere is a three-dimensional shape that is a perfect sphere, meaning it has a circular base and a curved surface that is the same distance from the center at all points.
Concentric spheres can be found in objects such as Russian nesting dolls, onion layers, and the layers of the Earth's atmosphere.
Unlike other shapes, concentric spheres have the same center point and are perfectly nested within each other, creating a series of concentric circles on the surface of each sphere.
The formula for calculating the volume of a concentric sphere is V = (4/3)π(r3 - R3), where r is the radius of the smaller sphere and R is the radius of the larger sphere.