Question

7. Which of the following number is perfect square,
1057
2343
1764
90​

Answer 1

Step-by-step explanation:

1057 is not a perfect square. Since, the ending digit is 7 (which is not one of 0, 1, 4, 5, 6 or 9).

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Answer 2

Answer:

A perfect square must end with 0,1,4,9,6,5

So 1764 = 42²