2017-04-12 20:07:01拜足
數字 撲朔迷您 62
For any four consecutive Fibonacci numbers a, b, c, and d,
ad and 2bc form the legs of a Pythagorean triangle and cd –ab is the hypotenuse.
ad and 2bc form the legs of a Pythagorean triangle and cd –ab is the hypotenuse.
上一篇:數字 撲朔迷您 61
5 8 13 21
105
208
273-40 = 233
233^2 = 105^2 + 208^2