Road Sign Math

H.B. Elkins found this mathematically significant roadsign while surveying the brand new I-26 section in North Carolina.

The math here requires no explanation.
\sqrt{9} = 3
This sign is on I-26 southbound just after passing from Tennessee to North Carolina. See sign on map!

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Dan Bock brings a second sign from Charlotte, North Carolina. This sign is from the Uptown area of Charlotte. You can see Charlotte’s Hearst Tower in the background of this photo.

Big bonus points for Messr. Bock on this sign find for using the numbers in exactly the order they appear on the sign [...]

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Road Sign Math first-timer Dan Bock finds the first mathematically significant roadsign from North Carolina. Messr. Bock spent weeks hunting for a sign in the Raleigh/Durham area and then decided to head to Charlotte to look for signs. His persistence paid off!

At first glance these signs seem to be independent, and would thus have to [...]

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