There is a number 6 on the tip of the triangle. Arrange the numbers 1, 2, 3, 4 and 5 such that the sum of each side of the triangle is 12.

Extensions:

Rearrange the numbers 1 through 6 so that the sum of each side of the triangle is 9.

Rearrange the numbers 1 through 6 so that the sum of each side of the triangle is 10.

What other numbers is it possible for the three sides to sum to by rearranging the numbers 1 through 6?

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