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Meaning of Penrose triangle | Babel Free

Noun CEFR B2

Definitions

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.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Penrose-Lucas argument penroseite Penruddock Penry Penryn Pens

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