SOLUTION: A triangle has two sides of length 8cm and 12cm. The length of the 3rd side CANNOT be a)5 b)8 c)12 d)19 e)21

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Question 1114706: A triangle has two sides of length 8cm and 12cm. The length of the 3rd side CANNOT be
a)5 b)8 c)12 d)19 e)21
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
If a side is longer than the sum of two others, it can't be a triangle.
21 is more than 8+12
e) 21