pentagon

(pĕnˈtə-gŏnˌ)

1. A polygon having five sides and five interior angles.
2. Pentagon A five-sided building near Washington, D.C., containing the U.S. Department of Defense and the offices of the U.S. Armed Forces. Used with the.

Related Forms:

• pen·tagˈo·nal (pĕn-tăgˈə-nəl) adjective

• pen·tagˈo·nal·ly adverb

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pentagon

mathematical figure