Tangential quadrilateral

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

In Euclidean geometry, a tangential quadrilateral (sometimes just tangent quadrilateral) or circumscribed quadrilateral is a convex quadrilateral whose sides all can be tangent to a single circle within the quadrilateral.

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

Image: J Hokkanen, CC BY-SA 3.0, via Wikimedia Commons.