729
Chat with our AI personalities
The square root of 81 is 9, and 9 cubed is 729.
The square root of 81 is 9 and the square root of 4 is 2!
Square root of 81
The opposite of a square root is the square of a number. For example, the principal square root of 81 is 9, while the square of 9 is 81.
The square root of 9 cubed is equal to 27.