Answer:
Explanation:
The second possibility, where the sides are 15 cm, 7 cm, and 9 cm, will form a triangle.
To form a triangle, the sum of any two sides must be greater than the third side. That is, in option 1, the sum of the two shorter sides (7 cm + 7 cm = 14 cm) is not greater than the longest side (15 cm), so it cannot form a triangle. In option 3, the sum of the two shorter sides (6 cm + 7 cm = 13 cm) is not greater than the longest side (14 cm), so it cannot form a triangle. Similarly, in option 4, the sum of the two shorter sides (6 cm + 8 cm = 14 cm) is not greater than the longest side (14 cm), so it cannot form a triangle.