ISEE/SSAT Vocabulary Builder›Words›P›pentagon
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pentagon
a shape with five straight sides and five angles
Synonyms
- five-sided
- five-angled
- five-cornered
pentagon in a sentence
The classic soccer ball pattern includes black pentagon shapes surrounded by white hexagons.
The garden designer arranged the flower bed as a pentagon so that five paths met at a central sundial.
Where it comes from
From Greek pente 'five' + gonia 'angle'
Memory hook
PENTA (five) + GON (angle) — five angles, five sides.
Word parts
- pent, quin — five
pentagon: pent (five) + gon (angle)
Read it in context
- Secrets of Red Mesa Science