Trapezoid is 3D. The shadow of this shape is called Trapezium.
An 3d trapezoid
3D trapezoid
2d
Truncated pyramid.
trapezium
A three-dimensional trapezium is called a trapezoid. It is a four-sided figure with at least one pair of parallel sides.
It is a trapezoid which is a 2D shape whereas the rest are 3D shapes.
A trapezoid prism
Cubes, cuboids, Trapezoid prisms, octahedrons
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.
You don't... you cant have 3 faces
what is called a upside down trapezoid