Question #N171
The lengths of two sides of a triangle are 5 and 12. Which of the following could NOT be the length of the third side of the triangle?
A. 7
B. 8
C. 13
D. 17
Correct Answer is: D
The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In this case, 5 + 12 = 17, so the length of the third side cannot be 17.