it has five sides.
5 sides
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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.
a flat pattern is when you take a 3D shape and you basically unfold and flatten the shape so it's in 2D
The South was in worse shape, since they were defeated. Plus there was the Reconstruction Era which penalized the South and burdened them with additional bureaucracy.
Some Chinese people are made fun of because of the shape of thier eyes. An oval shape.
Fort Sumter was a pentagon.