The classic \(3 \times 3\) magic square uses numbers \(1\) to \(9\). Try to create a magic square with numbers 11 to 19. What is the new magic sum?
[Hint: Use general form of \(3 \times 3\) magic square using numbers \(1\) to \(9\)]
| \(13\) | ||
| \(12\) |
Magic sum \(=\)