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26 January, 17:50

Which is a perfect square?

A. 72

B. 81

C. 90

D. 99

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Answers (2)
  1. 26 January, 18:10
    0
    B. 81 because the square root of 81 is 9
  2. 26 January, 18:13
    0
    B:81. Because perfect squares have a perfect square root
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