Paper is a 3D object.
The cross section, of a 3D object, is the 2D shape made when a 2D plane cuts across the 3D object. Often "cross section" refers to the shape made when the plane is at right angles to an axis of the 3D object but this need not be the case.
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
a pyramid is a 3D objecta triangle is a 2D object
2D, a cube would be 3D
a 2D object is is flat and on the other hand a 3D object is bulgy
yaa, you need to master how the formation of a 2D object, then it is very easy to form a 2D object into 3D shapes
Paper is a 3D object.
The cross section, of a 3D object, is the 2D shape made when a 2D plane cuts across the 3D object. Often "cross section" refers to the shape made when the plane is at right angles to an axis of the 3D object but this need not be the case.
Pentagon 2d shape is a pentagon 3d object is a pyramid.
2D is a shape or an object that is flat and u can not pick it up, and it has 2 faces. 3D is a shape or an object that is a shape and you cant pick it up and hold it, and it can have as many faces.
A 2D shape is flat and only has a surface area whereas a 3D shape is an object that has surface area and volume.
a pyramid is a 3D objecta triangle is a 2D object
3d+8=2d-7 3d+8-8=2d-7-8 (substract 8 on both side) 3d=2d-15 3d-2d=2d-2d-15 (substract 2d on both side) d=-15
a 3d object made of 2d faces with all flat sides
2D, a cube would be 3D
2D is two dimensions and 3D is three dimensions. 2D and 3D animation is animation that works in 2D and 3D. Often, 3D is used instead of 2D in order to enhance the perception of quality, even though the 3D is rendered on a 2D visual field. Its a matter of perspective. (Pun intended.)