Every prism has a 2D face. If it does not, it cannot be a prism.
A pentagonal prism has 7 faces - a prism of any 2D object will have (2D sides + 2) faces.e.g. An octagonal prism - 8 side octagon, 8+2=10 face prism.
A prism, by definition, is 3D. You cannot have a 2D prism.
In 2D, a rectangular prism is represented as a rectangle, which is a flat shape with four right angles and opposite sides that are equal in length. While a rectangular prism is a three-dimensional object with depth, width, and height, its 2D representation simplifies it to just the length and width. The area of this rectangle can be calculated by multiplying its length by its width. Thus, in 2D, a rectangular prism is essentially the shadow or face of the 3D object.
it a triangle as a 2d shape
No.
The 2D name for an octagonal prism is an octagon. An octagonal prism consists of two parallel octagonal bases connected by rectangular faces, but when referring to its 2D representation, it is simply an octagon.
no, it's 2d
A prism is 3d and a pyramid is in 2d
You cannot have a 2d prism. The 2d cross section will depend on the plane of the cross section.
No. A rectangle is a 2D shape, while a prism is a 3D figure.
The latter
because triangle is only 2d shape but a prism is 3d shape