✔ 最佳答案
1.
The rules in magic square are all the numbers in the rows, columns and diagonals should added up to be equal.
圖片參考:
http://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Magicsquareexample.svg/180px-Magicsquareexample.svg.png
2.
The one who invented Magic Square is called Leri , a mathematician in France , in 1901.