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7 October, 07:32

Which of the following number (s) is a perfect square (s) ? Select all that apply. 1 2 4 5 9 11 25 36 45 81 144 225 400

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  1. 7 October, 07:45
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    A perfect square is what u get when u multiply 2 of the same numbers together.

    For example : 2 * 2 = 4 ... 4 is a perfect square

    3 * 3 = 9 ... 9 is a perfect square

    4 * 4 = 16 ... 16 is a perfect square

    2 cannot be a perfect square because u cant multiply anything by itself that equals 2.

    so ur perfect square numbers are : 1,4,9,25,36,81,144,225,400
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