A sphere is round - like a tennis ball. A torus is ring-shaped - like a donut !
No, a sphere is not equivalent by distortion to a torus. A sphere is a simple closed surface with no holes, while a torus has a hole in the middle. In topological terms, they belong to different categories, as a sphere has a genus of 0 and a torus has a genus of 1. Therefore, they cannot be transformed into one another through continuous deformation (homeomorphism).
A hemisphere is half a sphere
Sphere is whole a hemisphere is not
A sphere or torus (a donut).
Sphere, torus, moebius strip
No, a sphere is not equivalent by distortion to a torus. A sphere is a simple closed surface with no holes, while a torus has a hole in the middle. In topological terms, they belong to different categories, as a sphere has a genus of 0 and a torus has a genus of 1. Therefore, they cannot be transformed into one another through continuous deformation (homeomorphism).
A hemisphere is half a sphere
Sphere is whole a hemisphere is not
A sphere or torus (a donut).
An ellipsoid, a sphere, a torus to name a few.
A sphere, an ellipsoid, a torus (donut), an irregular blob with no pointy bit.
Sphere, torus, moebius strip
A blob, an ellipsoid, a torus (doughnut), a sphere
A sphere, ellipsoid, torus (doughnut), and many more besides.
A sphere has 0 vortex and a cylinder has 2 faces
A sphere, a cone, a section of a sphere or ellipsoid, a torus (doughnut) sliced by a plane perpendicular to its axis, a paraboloid. These are some examples.
They are very different, as a square sphere is impossible. The difference is that a square pyramid exists, whereas there's no such thing as a square sphere.