Question

Which of the following is not a perfect square?




400

1225

198

2500​

Answer 1

Answer:

198 is not a perfect square

400 = (20)²

1225 = (35)²

2500 = (50)²

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Answer 2

Answer:

198

Step-by-step explanation:

No. ending with (0<in even no.>1,4,5,6&9)

As the no. 198 end with 8<not in the no. mentioned above>. Hence, it is not a perfect square