is a square a 3d shape
it can have 12 edges any 3d square can
The simplest such shape is PYRAMID.
It is a square based pyramid. And the word is which, not witch!
rectangular prism
A threedeesquare ( a 3d square) LOL
is a square a 3d shape
Oh, dude, you mean a 3D trapezium? That's like calling a square a 3D square, it's just a trapezoid. Adding that extra dimension doesn't change its name. It's still just a trapezoid, but with a little more pizzazz.
12 Sides.... A 3d Square is a cube!!
it can have 12 edges any 3d square can
The simplest such shape is PYRAMID.
It is a square based pyramid. And the word is which, not witch!
rectangular prism
A 3D square is surely a cube? Therefore, a cube has 6 faces.
The answer to that one has never been found, since there is no such thing as a "3d square".
A cube!
There can be no closed 3D shape with only one square and 3 triangles.