7. Which three lengths could be the lengths of the sides of a triangle?

Answer:
10 cm, 15 cm, 24 cm
Step-by-step explanation:
The lengths of the sides of a triangle need to be c < a+b, c > a-b, where a, b, and c are sides. Because of this, we can eliminate 1, 3, and 4, leaving 2 (10 cm, 15 cm, 24 cm) to be the right answer.