Saturday, July 4, 2015

Paper Magic: Circles to Square

Mixing in mathematics and magic again with this geometry puzzle from 'What We Do All Day'

First I taped the two paper rings together and sliced one ring in half all the way around.
M: "When I cut this circle, what do you think will happen?"
O: "Two circles."

M: "What about when I cut the strip?"
O: "Three circles."

Would you believe, it makes a square?


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