The building that's shaped like a pentagon.
Yes. The five sided building houses the Department of Defense and is located in Arlington, VA.
The Pentagon.
Each corner of the Pentagon building is 108 degrees (assuming that the building is indeed a perfect equalateral pentagon).
They are both the same. Pentagon is just a shorter way of saying the pentagon building. As for if you meant the shape pentagon, it is called the pentagon because it's shape is a pentagon.
Yes, the Pentagon.
If viewed from the air, the shape of the building is a pentagon (it has 5 sides)
Yes. The building is called "The Pentagon". http://en.wikipedia.org/wiki/The_Pentagon
The US "Pentagon" building is an example of their use.
When it is a building otherwise a 5 sided polygon is a pentagon
The Pentagon building in Washington, DC. ;)These are right
Yes
the pentagon
Japan