Many 3d shapes have a corner.
The corner on a shape where edges meet is called a vertex.
vertex
You connect the points that it has, corner to corner and count them. Moo
Vertex or in plural, vertices
A cone
It cannot be a polyhedron nor any "normal" 3d shape.
Many 3d shapes have a corner.
Wich 3 D shape has a corner on it?
triangle
A cone perhaps
A teardrop shape?
A diagonal.
The corner on a shape where edges meet is called a vertex.
rectangle. * * * * * Since a rectangle is NOT a 3-D shape, the answer is clearly wrong. Many 3-d shapes have a corner.
Any polyhedron.
Possibly a cone