Pentagonnoun
(geometry) A polygon with five sides and five angles.
Pentagonnoun
A fort with five bastions.
Pentagonnoun
A plane figure having five angles, and, consequently, five sides; any figure having five angles.
Pentagonnoun
a government building with five sides that serves as the headquarters of the United States Department of Defense
Pentagonnoun
the United States military establishment
Pentagonnoun
a five-sided polygon
Pentagon
In geometry, a pentagon (from the Greek πέντε pente and γωνία gonia, meaning five and angle) is any five-sided polygon or 5-gon. The sum of the internal angles in a simple pentagon is 540°.
Hexagonnoun
(geometry) A polygon with six sides and six angles.
Hexagonnoun
A plane figure of six angles.
Hexagonnoun
a six-sided polygon
Hexagonnoun
a plane figure with six straight sides and angles.
Hexagon
In geometry, a hexagon (from Greek ἕξ, hex, meaning , and γωνία, gonía, meaning ) is a six-sided polygon or 6-gon. The total of the internal angles of any simple (non-self-intersecting) hexagon is 720°.