Only theoretically. A "point" takes up some space, but obviously they are used on the assumption that a "point" takes up no space at all. This assumption makes it difficult for them to realistically exist.
true
true
In geometry, a solid is a three-dimensional object that occupies space, while a plane is a flat, two-dimensional surface. A solid cannot exist entirely within a plane, as it has depth, but it can intersect or project onto a plane. For example, a cube can cast a shadow (a two-dimensional representation) onto a plane, while still being a three-dimensional object. Thus, solids may interact with planes, but they exist in three-dimensional space.
A cone needs a three dimensional space in which to exist but it's not a solid, it's a two dimensional surface.
Cone
Yes, it does exist.
true
true
true
The term "statue" is used for three-dimensional works of art. Of course, two-dimensional works of art exist, but they are not usually called "statues".
A 3D triangle
There are a number of three dimensional shapes. These include the cube, the square pyramid, the prism, as well as the rhombohedron.
vertex
In geometry, a solid is a three-dimensional object that occupies space, while a plane is a flat, two-dimensional surface. A solid cannot exist entirely within a plane, as it has depth, but it can intersect or project onto a plane. For example, a cube can cast a shadow (a two-dimensional representation) onto a plane, while still being a three-dimensional object. Thus, solids may interact with planes, but they exist in three-dimensional space.
A cone needs a three dimensional space in which to exist but it's not a solid, it's a two dimensional surface.
A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space.
Three-dimensional things are objects that have height, width, and depth. They exist in physical space and have the ability to be viewed from multiple angles. Examples include a cube, sphere, and pyramid.