San Fran Pi

San Fran Pi
Found by	TiltedWorld
City
State	California
Country	United States
Continent	North America
Posted on	Feb 5, 2006
Map Location	37° 19' 2" N, 121° 56' 24" W
Numbers	880, 280
Type	Constant
Loading map...

Roger Knowles found this mathematically significant roadsign combination while driving around San Jose.

Here we see a return of the most popular pi approximation on Road Sign Math -- 22 over 7.

${{880} \div {280}} \approx 3.141 \approx \pi$

This sign is located on I-280 in California.