4 ms·

> which is impossible Or, generally, is only possible in a non-Euclidean geometry (which the Russian students apparently did not know very well).

• rdtsc 5y ago
  I doubt knowledge of non-Euclidian geometry expected in standardized tests like SAT or ACT, where supposedly this problem came from.
  • Koshkin 5y ago
    I think the whole story is a joke (not unlike the one about the "space pencil").