Answer:25
Step-by-step explanation:A square has equal length on all its sides, so the area of square is
Length x Length = 625
Which is
Length ^2 = 625
We want the number that when it times it’s self it’s 625
It can be done by square root of 625 which is 25. So the length of side is 25.
Or look at the prime factorization of 625 ( or just factors) and what number they can make up
Which is 5x5x5x5 = 625
They can make up
5^2 x 5^2 = 25 x 25 that is the “same” number
So the length is 25