We get two hemispheres.
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Half a sphere is a hemisphere or the shape of a ball cut in half.
It becomes an hemisphere
a bisecting line ? Diameter ______________ The question needs to be re-thought. Lines do not cut spheres in half, no matter where the line is in the sphere. The simplest thing that can cut a sphere in half would be a plane.
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A hemisphere is a half of a sphere, divided by a plane passing through its center. It has a flat base where the cut was made, while a sphere is a three-dimensional shape with no flat surfaces. The hemisphere has a curved surface area and volume that are half that of a full sphere.