Q:
# What Is the Square Root of 90?

**The square root of 90 is 9.48.** The square root is determined by finding a number that, when multiplied by itself, equals the number in the square root function. For 90, this calculation is expressed as 9.48 x 9.48 = 90.

Sometimes, it is possible to simplify the square root of a number by factoring out the square root of a whole number. Since nine times 10 equals 90, the formula is simplified by writing it as the square root of nine times the square root of 10. Since the square root of nine is three, it can be further simplified as three times the square root of 10.

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