![](http://www.alamy.com/thumbs/6/78F62881-3023-411D-8FFA-F80F7ABD6078/W3G743.jpg)
pi symbol, mathematical carved in stone constant isolated on black background
Size: 3550px × 3550px
Photo credit: © dotted zebra / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: 3d, abstract, area, art, background, ball, black, calculation, circle, circumference, concept, constant, diameter, dimensional, education, formula, formulas, geometry, granite, hole, illustration, isolated, learn, math, mathematical, mathematics, number, pi, radius, rock, school, science, sign, sphere, stone, surface, symbol, volume