Question

Which set of numbers CANNOT represent the lengths of the sides of a triangle?

O A. 9, 12, 19
O B. 7, 5, 6
C. 6, 8, 11
O D. 7, 18, 11

Answer 1

D

Explanation:

The problem with D is that 7 + 11 = 18. The rule is any two sides must exceed the third. D gives the shorter + the middle length = the longest length.

That can't work. All the others are fine.