A sphere !
Flat
An impossibility. An area is a 2-dimensional measure whereas the figure in the question is a 3-dimensional measure of volume. The two are measures of different things and there is no relationship between them.
A tetrahedron is 3-dimensional and so it looks just like an ordinary tetrahedron.
"2-dimensional" means "flat". Anything you can draw on paper is a 2-dimensional shape.
I think it's like lines or something
Flat
A three dimensional solid figure looks like a cube or a prism. Pyramids are three dimensional solid figures as well.
A tesseract is a hypothetical four-dimensional figure (which does not actually exist).
An impossibility. An area is a 2-dimensional measure whereas the figure in the question is a 3-dimensional measure of volume. The two are measures of different things and there is no relationship between them.
they look like nerds
It looks like a spiral in 4-dimensional space!
Any photo that isn't a 3-dimensional photo is a 2-dimensional photo.
one dimensional
A tetrahedron is 3-dimensional and so it looks just like an ordinary tetrahedron.
"2-dimensional" means "flat". Anything you can draw on paper is a 2-dimensional shape.
I think it's like lines or something
drawing of a circle or triangle