Answer :
[tex]\sqrt{81}=9 \\
\sqrt{100}=10[/tex]
The square root of 81 is 9, the square root of 100 is 10. 89 is between 81 and 100, therefore the square root of 89 must be between 9 and 10.
The square root of 81 is 9, the square root of 100 is 10. 89 is between 81 and 100, therefore the square root of 89 must be between 9 and 10.
