On Wikipedia

In geometry, a pentagon (from pente, which is Greek for the number 5) is any five-sided polygon. A pentagon may be simple or self-intersecting. The sum of the internal angles in a simple pentagon is 540°. A pentagram is an example of a self-intersecting pentagon.

Read more about Pentagon on Wikipedia

Topic Trends

Related Topics

Al-Qaeda American Airlines Flight 77 China DARPA Defense (military) Fighter aircraft Flight 93 (TV film) Insurgency Joint Chiefs of Staff Leon Panetta Lockheed Corporation Lockheed Martin F-35 Lightning II National security Osama bin Laden Pentagon Papers Robert Gates September 11 Shanksville, Pennsylvania Strike fighter The Pentagon United Airlines Flight 93 United States Air Force United States Armed Forces United States Capitol United States Department of Defense United States House Committee on Armed Services United States Marine Corps United States Navy United States Secretary of Defense World Trade Center

This Topic's Categories