![](http://www.alamy.com/thumbs/6/003A69D3-C0E6-4574-BA77-57A20865D083/2WJFFFN.jpg)
Penrose impossible triangle in blue, red and yellow
Size: 5000px × 5000px
Photo credit: © Artshotphoto / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: abstract, blue, changeability, concept, conceptual, design, fantasy, geometric, geometrical, geometry, idea, illusion, impermanence, impossible, infinity, instability, line, logo, magic, modern, optical, overlapping, parallel, penrose, perspective, red, shape, side, sign, symbol, triangle, tribar, vector, vectors, yellow