Best Answer

3 is the square root of nine. Or another way, 3 squared is nine.

Or more accurately, the square root of 9 is ±3. Meaning, it can be either 3 or -3.

Q: What is the squareroot of 9?

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the diagnol is the side of the square times squareroot(2) so the length of the side is 11/squareroot(2) and in simplified form your final answer is 11*squareroot(2)/2

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