Imagine a tic tac toe board?

Question

Using all numbers 1 - 9 construct the tic tac toe board so that the rows, columns, and diagonals each have a different sum.

123
456
789

The above does not work because there are multiple lines that add up to the same number 15.

Good luck !

Answer 1

3 8 7
5 2 4
6 9 1

Rows: 18, 11, 16
Columns: 14, 19, 12
Diags: 6, 15

Answer 2

Diagonals too!

1 2 5
4 6 3
7 9 8

Row: 8, 13, 24
Columns: 12, 17, 16
Diagonals: 18, 15

I'm sure there are lots of other solutions too.

Edit: Looks like the first person changed their answer to match the second answerer now...

Answer 3

1 7 4
5 3 8
2 9 6

sum of rows: 12,16,17
columns: 8,19,18
diagonals: 9,10