Trapezoid is 3D. The shadow of this shape is called Trapezium.
An 3d trapezoid
3D trapezoid
2d
Truncated pyramid.
trapezium
It is a trapezoid which is a 2D shape whereas the rest are 3D shapes.
A trapezoid prism
Cubes, cuboids, Trapezoid prisms, octahedrons
You don't... you cant have 3 faces
If the two sides which are not parallel have equal lengths, then the trapezoid is called an isosceles trapezoid (standard trapezoid has unequal sides). The base angles in an isosceles trapezoid are equal in measurement, also I know that a trapezoid with two nonparallel sides the same length is called an isosceles trapezoid.
what is called a upside down trapezoid
Two trapezoid