You can
put this solution on YOUR website! .
According to triangle inequalities, the length of the third side should be shorter than the sum
of the lengths of the two other sides (which is 15+12 = 27) and longer than the difference
of the lengths of the two other sides (which is 15-12 = 3).
So, the potential length of the third side is any integer number from 4 to 26 inclusive. ANSWER
Solved.