I’m late in the day here, apologies – it snuck up on me. But…

Happy Pythagoras Day! If you’re not tracking, let me remind you quickly of your high-school math classes.

The Pythagorean Theorem says that given a right triangle – a triangle where one angle is 90-degrees, a “square” angle – if you square the lengths of the sides bordering the right angle (sides “a” and “b”), the sum of those two squared values is equal to the square of the length of the remaining side, the hypotenuse (side “c”).

a² + b² = c²

The easy integer example for this relationship is often expressed in terms of a 3-4-5 triangle. Put a right angle between sides of length 3 and 4, and the remaining side HAS to be length 5.

The squares of 3-4-5 are, respectively…

9-16-25

Not only are all three numbers perfect squares of 3-4-5, but 9+16=25! Happy Pythagoras Day!