SOLUTION: Which of the lists of three lengths cannot form a triangle? a. 2, 2, 5 b. 2, 5, 5 c. 2, 2, 2 d. 5, 5, 5

Algebra ->  Triangles -> SOLUTION: Which of the lists of three lengths cannot form a triangle? a. 2, 2, 5 b. 2, 5, 5 c. 2, 2, 2 d. 5, 5, 5       Log On


   

Question 325050: Which of the lists of three lengths cannot form a triangle?
a. 2, 2, 5
b. 2, 5, 5
c. 2, 2, 2
d. 5, 5, 5

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
a)The middle length must lie between the difference of the remaining legs and the sum of the remaining legs.
In this case (3%3CL%3C7), but L=2.