The girl starts to sing and other spheres appear as she mentions them ... The second girl tries to make herself into a cylinder shape, and an image of a cylinder appears. A third girl starts ...

cylinders, cones, and spheres. It details the formulas used to calculate their volumes, emphasizing the relationships between these shapes. For example, the volume of a pyramid is one-third that ...

Image caption, 3D shapes that are non-polyhedral include cylinders, cones, and spheres. At least one face is not a polygon. At least one face has a curved surface. A cylinder has a constant ...