4 ms·

Cones and cylinders don't have any flat sides?

• dylan604 5y ago
  No wonder US schools are so poorly rated. They get very basic stuff very wrong like this. 2+2=5 is probably in the previous chapter.
  • junon 5y ago
    2.4 rounded is 2. 2.4 + 2.4 = 4.8, rounded is 5. Therefore, 2 + 2 = 5. I was taught this as a "mind teaser" in middle school once. It was supposed to be cute and fun, but just ended up confusing half the class.
    • dghf 5y ago
      2 + 2 = 5, for sufficiently large values of 2 and sufficiently small values of 5.
      • deleted 5y ago
        [deleted]
      • hulitu 5y ago
        Talking about undefined behaviour.
    • xook 5y ago
      Cute and fun, but also very real if you're a CPU: https://0.30000000000000004.com/ https://0.30000000000000004.com/
      • junon 5y ago
        I wouldn't consider the brain teaser a result of FP error. But yes, something to consider anyway.