These clearance signs were found on 1st Ave. in Phoenix, Arizona.

The clearance signs say...

+-------------------------+ | Enter-Clearance 6'-10'' | | Low Clearance 9'-1'' | +-------------------------+ the numbers are: 6 10 9 1 the math is: sqrt(10 + 6) = sqrt(9) + 1 observe... 10 + 6 = 16 sqrt(16) = 4 sqrt(9) = 3 3 + 1 = 4 [exercise] find more math that doesn't use sqrt()

**Creator:** Gerald D. Thurman
[gthurman@gmail.com]

**Created:** 19 July 2007

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