HKC: A^2 + B^2 = C^2

The sum of the squares of the sides of a right triangle is equal to the square of the hypotenuse - we all remember the Pythagorean Theorem, right? This geometry axiom came into play yesterday: I wanted to buy a tablecloth for our new table, which is 54" square, and the only candidate was a 70" round (the rest were too-small squares or too-large rectangles). The diagonal across the table from opposite corners - the hypotenuse of a right triangle formed by two 54" sides of the table - can be determined by that formula, and is the minimum size a circle must be to fully cover a square. I didn't do the math, but guesstimated instead, and figured it would fit.

It didn't. When A and B each equal 54, C= 76.5 - close, but no cigar.

Well, the ride out to the Ballard Fred Meyer was fun anyway, and now I have a reason to do it again today: returning the tablecloth.

Other than misadventures in word problems, the holiday passed quietly, at least until the boom-boom of the mortars for the fireworks shows. There were some pop-pops of local fireworks throughout the day and night, not enough to be really annoying but enough to keep the cats in.

I spent the evening over at O's for a casual pot-luck bbq, with Johnbai, Dingo, Mommo and Beau, and Bran for just a little while. Nice, low-key fun included a walk to the park for a turn around the playground before dessert.

Today is gray and threatening rain, but for some of us, sunshine is on the daily menu. Otis sends these pictures from Hawai'i: