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Which of the following numbers are perfect squares?11, 12, 16, 32, 36, 50, 64, 79, 81, 111, 121 |
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Answer» (i) 11 it is a prime number.So it is not a perfect square. (ii) 12 is not a perfect square. (iii) 16= (4)2 \(\therefore\) 16 is a perfect square. (iv) 32 is not a perfect square. (v) 36= (6)2 \(\therefore\) 36 is a perfect square. (vi) 50 is not a perfect square. (vii) 64= (8)2 \(\therefore\) 64 is a perfect square. (viii) 79 it is a prime number. So it is not a perfect square. (ix) 81= (9)2 \(\therefore\) 81 is a perfect square. (x) 111 it is a prime number. So it is not a perfect square. (xi) 121= (11)2 \(\therefore\) 121 is a perfect square. |
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