Q: What number is squared to equal 81?

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82 is not the square of an integer. The closest square number of an integer is 81, which is equal to 9 squared.

81

yes it isThe square root of 81 is 9.

64 and 81 ; 64 is 8 squared and 81 is 9 squared

-9 or +9.

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When a number is squared, it means that it is that number is multiplied by itself. So in this case it would be 9x9 which is equal to 81.

lokiya said: 9 squared is equal to 81

82 is not the square of an integer. The closest square number of an integer is 81, which is equal to 9 squared.

81

Yes, 9 squared = 81.

6,561

yes it isThe square root of 81 is 9.

No but 81 is a square number

.12

64 and 81 ; 64 is 8 squared and 81 is 9 squared

-9 or +9.

No, 90 is not a square number. 81 is 9 squared and 100 is 10 squared.