A cube.
Faces
There can be no such shape. If there were a shape with n flat surfaces, then if you sliced off one vertex, you would have a shape with n+1 flat surfaces. So it is always possible to add one more flat surface.
A Rhombus is a flat shape with 4 equal straight sides. So the answer is that there are four interior angles.
A "hemisphere" - a ball that's been cut into 2 equal parts. i.e "half a sphere".
Cylindrical shape or Cylinder shape
Faces
The shape of 2D is a flat surface.
No because it is flat 2d shape with 4 equal sides
It is a cube or a cuboid
Consider an ellipsoid with two equal axes and a third which may or may not be equal. Any cross section of the ellipsoid, by a plane perpendicular to the third axis will have the required shape.
a cylinder
Bed bugs are flat in shape.
There can be no such shape. If there were a shape with n flat surfaces, then if you sliced off one vertex, you would have a shape with n+1 flat surfaces. So it is always possible to add one more flat surface.
A Rhombus is a flat shape with 4 equal straight sides. So the answer is that there are four interior angles.
the face
Sphere
no