Orthodiagonal quadrilateral

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Notion

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Science and technology

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What Wikipedia says

In Euclidean geometry, an orthodiagonal quadrilateral is a quadrilateral in which the diagonals cross at right angles. In other words, it is a four-sided figure in which the line segments between non-adjacent vertices are orthogonal (perpendicular) to each other.

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

Image: David Eppstein, CC0, via Wikimedia Commons.