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Which is a perfect square? 72 81 90 99

Which is a perfect square? 72 81 90 99
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0 votes
Which is a perfect square?
72
81
90
99

asked
User Chante
by
8.2k points

2 Answers

7 votes

72 just divide by 4 which ever one doesn't have a decimal I think.

answered
User Gabriel Rohden
by
8.7k points
4 votes

81 = 9 x 9 = 9^2


√81 = 9


Answer

81

answered
User Yoav Schniederman
by
8.5k points
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