Pythagorean Theorem Day

 16/12/20 was Pythagorean Theorem Day.

When the sums of the squares of the first two parts of a date are equal to the square of the last part, then the date is called Pythagorean Theorem day.

Let us consider the date: 16/12/20

                          2            2           2

Therefore  (16)  +  (12)   = (20)

The last Pythagorean Theorem day was 15/08/2017