Question

is 26 a perfect square? explain.

Answer 1

No because if you were to square it you would get 5.099 and a perfect square is when it is the same number times each other to get a number for example: the square root of 9 is 3 so 3 times 3 is 9. 
 
Hope that helps!

Answer 2

no, because square root of 26 is 5.099. For a number to be prefect square its square root must be a whole number, like 1,2,3,4 and so on