Help!! The figure shows on the right illustrates that the numbers 1,2,3,4,5 and 6 can ve placed around a triangle in such wat that three numbers aling any sum to 9.

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?