Which of the following set can never form the sides of a triangle?
Show answer & explanation
Correct answer: C
Explanation
Given:
Options
2 cm, 3 cm, 4 cm
5 cm, 5 cm, 5 cm
6 cm, 2 cm, 3 cm
7 cm, 8 cm, 12 cm
Triangle Inequality Rule:
The sum of any two sides must be greater than the third side.
2 + 3 = 5 > 4
5 + 5 = 10 > 5
2 + 3 = 5 < 6 (cannot form a triangle)
7 + 8 = 15 > 12
6 cm, 2 cm, 3 cm