because bob named it that... Ok?
If you mean the building, it is because it is pentagonal in shape. If you mean the shape, "pentagon" is greek for "five angles".
Actually, I think the Pentagon is named so because of the five branches of the military: U.S. Army, Marine Corps, Navy, Air Force, Coast Guard. And then it was built to be five sided to represent those branches.
The White House and the Pentagon are two different buildings. The pentagon is a government building with five sides that serves as the headquarters of the United States Department of Defense.
The Pentagon Papers
the pentagon is where the government lives =)
The word pentagon comes from the Greek word pentagon on
a pentagon has 5 sides, a regular pentagon has 5 EQUAL sides A Regular Pentagon is a shape that has equal angles and side lengths. It is type of Pentagon. Pentagons do not have to have equal sides and lengths.
The front of the pentagon
pentagon A pentagon. A 5-sided figure is called a pentagon. pentagon A five sided figure is called a pentagon
A pentagon if all sides are equal - if they are not it is called a polygon
Pentagon ("pent" means five).
A five sided polygon is called a pentagon because pentagon means five sided polygon I think.
A pentagon with 14 sides is called a "contradiction in terms".The definition of a pentagon is: A figure with fivesides.
Because a pentagon has 5 sides
Five sided shapes are called Pentagons
A 3D pentagon could be called a pentagon prism or a dodecahedron which is a Platonic solid with 12 pentagonal faces.
A 3-D pentagon
Not a pentagon. Penta = 5
If viewed from the air, the shape of the building is a pentagon (it has 5 sides)
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.