The 5 sides of the Pentagon represent the 5 branches
A pentagon has 0, but if you mean a pentahedron, then it depends on how you build it.
Each of the 5 branches of the military has a side of the pentagon.
It is a 5 sided shape with the properties that any line segment between two vertices of the pentagon remain in the boundaries of that pentagon. It generalizes to polygons.
Assuming you mean a pentagon - not penagon, a 3-dimensional pentagon is a dodecahedron which has 12 faces.
The 5 sides of the Pentagon represent the 5 branches
A pentagon has 0, but if you mean a pentahedron, then it depends on how you build it.
a pentagon is a six sided figure with equal sides. pentagonal means six sides or with a pentagon
a pentagon is a 5 sided figure so 5 (if you mean sides, not bases)
Each of the 5 branches of the military has a side of the pentagon.
You can't have a rectangular pentagon. Perhaps you mean regular? In any case every pentagon has 5 sides ("penta" = "five")
It is a 5 sided shape with the properties that any line segment between two vertices of the pentagon remain in the boundaries of that pentagon. It generalizes to polygons.
a shape with 5 sides
If you mean pentagon then the answer is 5.
If you mean vertices, a pentagon.
A pentagon would have 5 sides. If it had 12 sides it would not be a pentagon. Maybe you mean a dodecahedron with 12 sides. I don't know what you would call that.
Assuming you mean a pentagon - not penagon, a 3-dimensional pentagon is a dodecahedron which has 12 faces.