It is not a 3D shape.
It depends on the 3d shape.
a pyramid is a 3D shape :)
is a square a 3d shape
A camera is a 3D shape. A photograph is a 2D projection of a 3D shape onto a 2D shape.
Paper is a 3D object.
A heptagon is not a 3D shape. It is a seven sided shape. It could be designed on 3D software if necessary.
A shape in 3D is a polygon. Poly=many and gon=shape.
A 3d shape can have infinite sides
Many 3d shapes have a corner.
it mean 3d stans for dimensional shape
Its a 3d net that can be transformed into a 3d shape
A 12 sided 3D shape is a dodecahedron.
A cylinder is a 3d shape because you can see the in side of it.
tetrahedron is a 4 faced 3d shape.
A nonagon is a 2D shape and there is not a 3D equivalent shape.
A tridekahedron is a 3D 30 sided shape.
Every sphere is 3D. It's said to be "spherical" in shape.
An 11-sided 3D shape is a hendecahedron.
A cube is a 3D shape with a top and bottom.
The question is not particularly clear but I suspect that the answer is a vertex.
An icosahedron is a polyhedron has 20 faces, and is a 3D shape.