WebA regular pentagon has Schläfli symbol {5} and interior angles of 108°.. A regular pentagon has five lines of reflectional symmetry, and rotational symmetry of order 5 (through 72°, 144°, 216° and 288°). The diagonals of a convex regular pentagon are in the golden ratio to its sides. Given its side length , its height (distance from one side to the opposite vertex), …

WebDas Pentagon (deutsch „Fünfeck“; von gleichbedeutend griechisch πεντάγωνον pentágōnon) ist der Hauptsitz des Verteidigungsministeriums der Vereinigten Staaten.Der Begriff „Pentagon“ wird auch als Synonym für das US-Verteidigungsministerium benutzt.. Mit seinen je 280 Meter langen Außenwänden, einer Grundfläche von rund 135.000 …

WebThe Pentagon Papers, officially titled Report of the Office of the Secretary of Defense Vietnam Task Force, is a United States Department of Defense history of the United States' political and military involvement in Vietnam from 1945 to 1967. Released by Daniel Ellsberg, who had worked on the study, they were first brought to the attention of the public on the …

WebHet Pentagon is het gebouw van het Amerikaanse ministerie van Defensie in Arlington (), nabij Washington, dat in de vorm van een regelmatige vijfhoek (pentagoon) is gebouwd.Het is het hoofdkwartier van de Amerikaanse strijdkrachten.. Het Pentagon wordt gezien als een van de efficiëntst ontworpen kantoorgebouwen. Hoewel het gangenstelsel ruim 28 …

WebThe Pentagon is the headquarters building of the United States Department of Defense.It was constructed on an accelerated schedule during World War II.As a symbol of the U.S. military, the phrase The Pentagon is often used as a metonym for the Department of Defense and its leadership.. Located in Arlington County, Virginia, across the Potomac …

WebDaniel Ellsberg (born April 7, 1931) is an American political activist, and former United States military analyst. While employed by the RAND Corporation, Ellsberg precipitated a national political controversy in 1971 when he released the Pentagon Papers, a top-secret Pentagon study of the U.S. government decision-making in relation to the Vietnam War, …

WebThe United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national security and the United States Armed Forces. Headquartered at the Pentagon in Arlington, Virginia, just outside …

WebDe aanslagen op 11 september 2001, naar de Amerikaanse datumnotatie (maand/dag) vaak aangeduid als 9/11 (Engels: nine-eleven), omvatten een viertal terroristische aanslagen die op de ochtend van dinsdag 11 september 2001 door middel van gekaapte passagiersvliegtuigen in het noordoosten van de Verenigde Staten werden uitgevoerd.. …

WebEtymology. Star polygon names combine a numeral prefix, such as penta-, with the Greek suffix -gram (in this case generating the word pentagram).The prefix is normally a Greek cardinal, but synonyms using other prefixes exist.For example, a nine-pointed polygon or enneagram is also known as a nonagram, using the ordinal nona from Latin. [citation …

WebThe Pentagon Force Protection Agency (PFPA) is a federal law enforcement agency within the U.S. Department of Defense (DoD) charged with protecting and safeguarding the occupants, visitors, and infrastructure of The Pentagon, the Mark Center Building, the Defense Health Agency headquarters, the U.S. Court of Appeals for the Armed Forces …