Extreme Roots

Gerald Thurman grabbed this sign while browsing the Maple Ash neighborhood in Tempe, Arizona.



Mr. Thurman stacks square roots on top of square roots to create a mathematical pyramid that a high school cheerleading squad would be jealous of.

$$\sqrt{\sqrt{20 - \sqrt{\sqrt{1600} - 24}}} = 2$$

This sign is on S. Ash Avenue near W. 10th Street in Tempe, Arizona.