Possibly a face - or an edge. It would help if the question was properly phrased.
sphere
One side of a face in a 3D shape refers to a flat surface that forms part of the outer boundary of a three-dimensional object. In geometric terms, this is often called a "face," which can be a polygon like a triangle or rectangle. For example, in a cube, each side of the cube is a face, and there are six such faces in total. Each face contributes to the overall shape and volume of the 3D object.
The side and face of a 3-D shape are the same thing, but the side of a 3-D object is not, itself 3-Dimensional.
triangle * * * * * A triangle is NOT a 3d shape! A cube.
There can be no closed 3D shape with only one square and 3 triangles.
A sphere
A blob.
Mobius strip
An edge.
sphere
A cylinder is a 3d shape because you can see the in side of it.
The faces in a 3-D shape (polyhedron, for example) are bordered by edges.
To answer this question more details need to be provided. For example one a 3D shape one side is called a face.
Any one of the plain surfaces of a solid, three-dimensional shape. Also Called -- side
One side of a face in a 3D shape refers to a flat surface that forms part of the outer boundary of a three-dimensional object. In geometric terms, this is often called a "face," which can be a polygon like a triangle or rectangle. For example, in a cube, each side of the cube is a face, and there are six such faces in total. Each face contributes to the overall shape and volume of the 3D object.
They both have a face, not a :) face but a side of a shape is called a face and a 2d and 3d shape both show a face of the shape
The side and face of a 3-D shape are the same thing, but the side of a 3-D object is not, itself 3-Dimensional.