In a magic square each row, column and diagonal have the same sum. Check which of

the following is a magic square.


(i)


5



-1



-4



-5



-2



7



0



3



-3



(ii)


1



-10



0



-4



-3



-2



-6



4



-7


From the above question, we have


In the (i) square by adding every row and column we get sum which is equal to 0 but the sum of one of its diagonals is not 0


As,


-4 – 2 = - 6


- 6 0


Similarly,


In the (ii) square by adding every row and column we get sum which is equal to -9. Also all the diagonals of this square gives the same sum ie. -9


Therefore,


It is a magic square


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