Hexagon
A hexagon was a six-sided geometric shape.

In Spock's analysis of the Insectoid ship discovered in 2269, he noted how "[t]he hexagonal shape of the windows suggests a similarity to natural insect designs of Earth, the honeycombs of bees. The individual s are shaped precisely like this." ()

In 2376, Icheb created a twenty six-sided polyhedron out of clay, composed of hexagons, octagons, and squares. Seven of Nine was impressed by Icheb's work. ()

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Mathematics