In a “magic square”, the sum of the numbers in each row, in each column and along the diagonal is the same. Is this a magic square?


From the above question, we have:


Sum along the 1st row = + + =


Sum along the 2nd row = + + =


Sum along the 3rd row = + + =


Sum along the 1st column = + + =


Sum along the 2nd column = + + =


Sum along the 3rd column = + + =


Sum along the 1st diagonal = + + =


Sum along the 2nd diagonal = + + =


Therefore, sum of all the rows, columns and diagonals of this square are equal


Hence,


It is a magic square


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