There are 5 square numbers under 30: 1, 4, 9, 16, and 25.
The next two square numbers after 30 are 36 and 49
900
No. Negative numbers are real but their square roots are not.
25
30
real numbers, irrational numbers, ...
16 and 25
36, 49
They are: 36 and 49
5
the answer is 1. there is only 1 perfect square beteen 30 and 40.