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Right?
Let's see, Pythagorean theorem, is what, a couple thousand years old, and a single statement, right? And it's the foundation of geometry and trig. Hell, I regularly say it in my head (a2+b2=c2) when trying to figure out spatial relationships, for dumb stuff no less (will this table fit on my patio with room to walk around it?).
It's how you ensure anything you're trying to make square is square. In framing (shed, house, deck, whatever) it's used to ensure you setup your string in the proper orientation and don't end up with a parallelogram.
And the Periodic table.... The bloody basis of understanding chemical reactions and physics.
I guess if you're not teaching the Periodic Table, there'd be no hope if understanding evolutionary theory, since it's predicated on chemical behaviour.
Seriously… the Pythagorean Theorem is the single most important piece of practical math that can be easily taught to everyone.
And yet I’ve never needed it once in my life.
Wish instead of learning bullshit math, I was taught how to repair stuff around my house that I use everyday or a million other useful life knowledge.
I use it all the time. If you need a right angle, 3-4-5 gives you one, and that's Pythag, baybeee.