Draw a square of any size on a piece of paper, and that is what a 2D square looks like.
You cannot have a 2d pyramid - whether or not it is square based. The 2d cross section will depend on the plane of the cross section.
It's a 2D shape.
A square.
It will look like a 2D equilateral triangle if it is a triangular based pyramid which is called a tetrahedron.
In 2D, a square-based pyramid is represented as a square with a vertex pointing upwards, which could be referred to as a "triangle" in terms of its triangular sides and a "square" for its base. However, it doesn't have a specific name as a 2D shape since it's primarily a 3D object. The base is a square, and the triangular faces can be considered as simple triangles in a 2D context.
It could look a little like a dress if 2D. This is also if the square is on top of the trapezoid.
Yes. Just like a square is 2D.
a 2d pentagon looks similar to a house. Basically, draw a square with a triangle on top and widen the parallel lines at the top slightly.
only if it is in a certain shape, although the 3d shape would not look exactly like the 2d one, take this, if a square were to be turned into a square, it would have to be extended, but if you were to do this it would just stay as a 2d square, in a 3d world, but if it were a net (like the t cube) then yes, it would be able to become 3d
It is flat
You cannot have a 2d pyramid - whether or not it is square based. The 2d cross section will depend on the plane of the cross section.
Well its still a 2d because its like a normal square
It's a 2D shape.
A square.
Yes.
Well, it is because of the appearance. A square has 4 rights angles, 2 pairs of parallel lines, 2d shape, and all the sides are the same length! so look out for square's!
It will look like a 2D equilateral triangle if it is a triangular based pyramid which is called a tetrahedron.