This image makes me angrier than it should. Those 4 “right angle” designations are all lies. You cannot have a curved line attached to anything and call it a “right angle”. It’s not. Like, factually. I don’t care if it’s 2 feet long, or 200,000 miles, it will never be exactly 90°, which invalidates the entire thing.
This image makes me angrier than it should. Those 4 “right angle” designations are all lies. You cannot have a curved line attached to anything and call it a “right angle”. It’s not. Like, factually. I don’t care if it’s 2 feet long, or 200,000 miles, it will never be exactly 90°, which invalidates the entire thing.
OK. Walk in a straight line for a couple of metres and stop. Rotate left or right by exactly 90°. Now take a curved path in any direction.
Did you or did you not turn 90°?
That doesn’t make the resultant diagram 90° at those vertices. That’s just empiricist stupidity.
OK, then what angle is it?