Answer:
Between 9 and 10 and is closer 9.
Explanation:
The square root of 81 is 9 and
the square root of 100 is 10.
Therefore the square root of 88 is between 9 and 10.
88 is 7 greater than 81 and 12 less than 100, so the square root of 81 is closer to 9 than 10.