Conoid

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In geometry a conoid (from Greek κωνος 'cone' and -ειδης 'similar') is a ruled surface, whose rulings (lines) fulfill the additional conditions:

Excerpt from the Wikipedia article “Conoid”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Ag2gaeh, CC BY-SA 4.0, via Wikimedia Commons.