Two great structures are described below what is the difference in square feet between the visible surface area of the great pyramids in the first tower of the World Trade Center(hint The bottom side is not visible for either structure) The great pyramid of Giza built around 2550 BC has a square base with a length of 756 and the distance from the middle of any base side to the top is 612.

On September 11, 2001 terrorist crash planes into the World Trade Center twin towers. The first tower was a rectangular prism to square base who sides were 208 feet long. The tower was 1,368 feet tall.