pentagon
- noun
- /ˈpɛntəˌɡɒn/
- In geometry class, we learned that a pentagon has five sides and five angles.
- 12 pentagons
Put some powder on the head and then slid around on the floor like a snail and drew a Pentagon and lit a match or a little match.
- Put some powder on the head and then slid around on the floor like a snail and drew a Pentagon and lit a match or a little match.
- And I think they are the same seams and nose that you find on a stitched soccer ball, the older soccer ball that has hexagons and, and pentagons.
Examples
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Lining its periphery are various display cases of historical interest; and positioned along the wall at each point of the pentagon are five arched niches—each one containing a bronze bust.
Fiction book (1992) -
- How many sides does a pentagon have?
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Pick the next shape in a series: triangle, square, pentagon...?
Fiction book (1994) -
Tiles include regular pentagons built with a 3D printer.
Academic text (2014) -
Five fold patterns, however, are more challenging to tessellate because pentagons don't neatly fill a surface.
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The fort was laid out on a pentagon plan with five bastions (1), one at each corner, which gave it its "star" shape, and the main gate was protected by a ravelin (2).
Blog text (31) -
The playground features a large pentagon where children can play games.
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To draw a regular pentagon, make sure each angle measures 108 degrees.
Compounds
- NSFW
A violent group in the Philippines that kidnaps people and takes money by force
How Many Sides
Surface Forms
Morphology
pentagon = penta + gon
The components penta- ('five') and -gon ('angle') transparently reflect the meaning, but they are Greek combining forms rather than standalone English words, so an average B1 learner may not reliably infer the meaning from the parts.
Etymology
Pentagon comes from Greek parts penta- meaning 'five' and -gon meaning 'angle'. So a pentagon is a flat shape with five angles and five sides, like how a triangle has three.