Question

Determine between which two consecutive integers the square root lies.

Answer 1

Explanation:

we know the square numbers of the basic integer numbers :

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

6² = 36

7² = 49

8² = 64

9² = 81

10² = 100

so, we see when we square the inequality, the closest numbers are

81 < 91 < 100

and therefore

9 < sqrt(91) < 10