Question 482642:  Each set of numbers below represents the lengths of three line segments.  
Which set represent line segments that could be connected to form a triangle?  
A (3, 1, 2) 
B (3, 2, 5) 
C (1, 15, 100) 
D (40, 5, 40) 
E (30, 4, 10) 
F (20, 30, 50) 
 Answer by cleomenius(959)      (Show Source): 
You can  put this solution on YOUR website! By the triangle inequality theory, the sum of any two sides of a triangle must exceed the third side. 
The only set that fits this criteria is D, 40,5 and 40. 
Cleomenius. 
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