A 3d rectangle, or a cuboid, has eight corners.
No corners and two edges !
A 3D star is not a standard shape. You can easily add another point.
If it is a polyhedron, then four or more faces and four or more corners.
It has 5 corners if it is a 3D shape like a piramid but if it is 2D it is 3
A 3d rectangle, or a cuboid, has eight corners.
No corners and two edges !
There are four corners on a square.
A square has 4 corners.
It has 4 corners
It is a square base pyramid
There are 4 corners in a flat rectangle and 8 corners in a 3d rectangle(rectangular prism).Four.
I just want to say that no 3D shape has corners, they have vertices (singular vertex), which is what you might call a corner, but this is the correct terminology.A sphere has no corners (as it is 3D), but it also has no vertices.
A 3D star is not a standard shape. You can easily add another point.
It has 4 corners
If it is a polyhedron, then four or more faces and four or more corners.
About 26 sides, and 24 corners.