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4 November, 12:51

Which is a pertect square?

72

81

90

99

+2
Answers (2)
  1. 4 November, 13:54
    0
    81

    Step-by-step explanation:

    81 is a perfect square since

    √81 = 9 (perfect square)

    However any of the others aren't perfect squares
  2. 4 November, 14:04
    0
    81.

    Step-by-step explanation:

    9 * 9 = 81
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