Answer:
(15, 26, 42)
Explanation:
The question seeks to test your knowledge of the Triangle Inequality Theorem.
The Triangle Inequality Theorem states that the summation of any 2 sides of a triangle must be greater than the measure of the third side.
Note: This rule must be satisfied for all 3 conditions of the sides.
The answer is (15, 26, 42) and it would not represent the three sides of the triangle.
Other options (8,11,18), (6, 9,12) & (13,19,31) satisfies the Triangle Inequality Theorem.