Difficulty: Tricky
I’ve got a square piece of paper, with lines for writing on both sides. Right now, the lines are running up and down the page. To get the lines running left and right, I could rotate the page, but that’s too boring. Can I do it by flipping the page instead?
Scroll down or click for a hint, or the answer!
Get a piece of paper and try it yourself – it’s a lot easier than doing it in your head.
It can be done! Pick up the paper by opposite corners – say, top left and bottom right, and flip it diagonally.
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16 October, 2019 at 7:22 pm
What happens if you flip it across an axis fifteen degrees from vertical and incrementally continue to do this three times?
17 October, 2019 at 9:24 am
Ooh! that’s clever!
If I’m interpreting you right,
do a flip at 15 degrees so the lines end up at 30 degrees,
then do a flip at 45 degrees so the lines are at 60 degrees
then finally at 75 degrees to get the lines running at 90 degrees.
That’s really neat!