ENNEAGONAL Meaning and
Definition
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Enneagonal is an adjective that is used in geometry to describe a geometric shape or object that has nine sides or angles. The term is derived from combining "ennea," which is a Greek word meaning "nine," and "gon," which is another Greek word commonly used to refer to a shape or figure.
When referring to two-dimensional shapes, an enneagonal shape would be known as a nonagon. This means it is a polygon with nine straight sides and nine interior angles. Each angle of an enneagonal shape measures 140 degrees, and the sum of the interior angles is 1,260 degrees.
Enneagonal shapes can also be observed in three-dimensional objects. For example, an enneagonal pyramid would have a base with nine sides, all of which connect to a single vertex point. Enneagonal prisms, on the other hand, would have two parallel enneagonal bases connected by nine rectangular faces.
Overall, the term enneagonal is primarily used within mathematical and geometric contexts to describe shapes, figures, or objects that possess exactly nine sides or angles.
Common Misspellings for ENNEAGONAL
Etymology of ENNEAGONAL
The word "enneagonal" is derived from the Greek words "ennea", meaning "nine", and "gonia", meaning "angle" or "corner". In geometry, an enneagon refers to a nine-sided polygon, and "enneagonal" is the adjective form used to describe anything related to or having qualities of an enneagon.
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