Question

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6) Which of the following are perfect squares?
(i) 6 (ii) 9 (iii) 4 (iv) 64 (v) 100​

Answer 1

When you multiply an integer (a “whole” number, positive, negative or zero) times itself, the resulting product is called a square number, or a perfect square or simply “a square.” So, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, and so on, are all square numbers.

So 9 is a perfect square

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