Answer:
22
13
6
9
8
Step-by-step explanation:
Remember, the triangle-sides inequatily, which states that the sum of smaller two sides must be greater the larger side.
Hence there are two situtations, in this case "x" represents the unknown side. For an answer to be valid, at has to satisfy one of these inequalities.
x + 9 > 15; x<15
15 + 9 > x
Answers;
22
13
6
9
8
