Correction for the size of The Pentagon
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How big is 1.380 circular mils?
It's about 0.000000000000005 times as big as The Pentagon
The size of The Pentagon is about 272,000,000,000,000.000000000000000000 circular mils.
(a.k.a. United States Department of Defense Headquarters) (Washington, D.C.) (total floor area)
The Pentagon, the world's largest office building, contains a total floor area of 272,000,000,000,000.000000000000000000 circular mils. Built during World War II, the designers compensated for the steel rations then in effect by using 310,000 cu. m of concrete in the construction efforts.