Question

Let's find the greatest square number of 4 digits.​

Answer 1

Answer: it is 9801

9999 is largest 4 digit number, and 100^2 is 10000, or 1 greater than the largest 4 digit number. This means that the closest square root of the largest perfect square is most likely 99. So 99^2 (9801)is the largest perfect square of four digits.

Answer 2

Answer:

the greatest square number of 4 digits is 9801.

99×99=9801

99^2=9801

I hope it is helpful............