Hopefully a rotating one - eh, I mean this one, but that flips at present, so we have to get it rotating (only then we will be able to see four 90° angles in D3 space).
"THE SUM OF THE SQUARE ROOTS OF ANY TWO SIDES OF AN ISOSCELES TRIANGLE IS EQUAL TO THE SQUARE ROOT OF THE REMAINING SIDE ."; OUR TRUTH DETECTOR SAYS YOU'LL FIT IN VERY WELL HERE ON IMGFLIP.
