Penrose triangles

A form of Penrose triangle — An optical illusion depicting an impossible solid object made of three straight beams of square cross section which meet pairwise at right angles at the vertices of the triangle they form.

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Meanings

noun
  1. pluralplural of Penrose triangle
Cite this entry
APA

Penrose triangles. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Penrose%20triangles

MLA

“Penrose triangles.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Penrose%20triangles. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Penrose triangles,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Penrose%20triangles.

Source: Penrose triangles on Wiktionary, CC BY-SA 4.0.