Pentagon
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Pentagon
The Pentagon is a building located in Arlington County, Virginia, just outside of Washington, D.C. It serves as the headquarters of the United States Department of Defense and is one of the largest office buildings in the world. The building has five sides, each of which is 921 feet long, and it covers an area of 29 acres. The Pentagon was completed in 1943 and has undergone several renovations and expansions since then, including the addition of a metro station in 2004. The Pentagon is not only a symbol of American military power, but it also plays a crucial role in the country's defense strategy. The building houses the offices of the Secretary of Defense, the Joint Chiefs of Staff, and various other military and civilian personnel. It is also the site of the National Military Command Center, which serves as the nerve center for the U.S. military's global operations. Despite its importance, the Pentagon has also been the target of several terrorist attacks over the years. The most notable of these was on September 11, 2001, when a hijacked airplane was flown into the building, killing 184 people. The attack led to a significant increase in security measures at the Pentagon and other government buildings across the country.
geometry, polygon, architecture, engineering, art, Department of Defense, headquarters, military power, defense strategy, National Military Command Center, terrorist attacks, security measures
Pentagon
In geometry, the pentagon is a five-sided polygon composed of five line segments. The five sides of the pentagon are usually equal in length and meet at five vertices. The interior angles of the pentagon are equal to 108 degrees, and the exterior angles are equal to 72 degrees. The area of a regular pentagon is determined by the length of its sides and the angle between them. Pentagonal shapes can also be created with curves instead of straight lines. Pentagonal shapes are used in various fields, such as architecture, engineering, and even art. For example, pentagons are often used to construct domes and other structures, as well as for ornamental designs. They are also used in the study of graph theory and for the analysis of crystal structure.
Pentagon, Polygon, Angles, Geometry, Area.
CITATION : "Kenneth Harris. 'Pentagon.' Design+Encyclopedia. https://design-encyclopedia.com/define/pentagon?E=245980 (Accessed on October 14, 2026)"
Pentagon on Design+Encyclopedia
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