The only square number between 20 and 30 is 25.
36 is the only square number that is also a triangular number between 20 and 40.
Any number between 20 and 22.36
17The prime numbers between 10 and 20 are 11, 13, 17 and 19. There is only one square number between 10 and 20: 16. Using the criteria given, the number that fits is 17.
1 and 4
The only square number between 20 and 30 is 25.
25 is a perfect square occurring between 20 and 30.
36 is the only square number that is also a triangular number between 20 and 40.
Any number between 20 and 22.36
2,4,3,
25 is 52.
Oh, dude, the square number between 10 and 20 is 16. It's like 4 squared, you know, 4 times 4. So, if you're ever in a situation where someone asks you for the square number between 10 and 20, you can confidently say 16 and impress absolutely no one.
17The prime numbers between 10 and 20 are 11, 13, 17 and 19. There is only one square number between 10 and 20: 16. Using the criteria given, the number that fits is 17.
1 and 4
25, 36, 49, 64, 81
4
20 is a not perfect square.