Triangle combinations

Question

Please help me understand how I get the answer to this problem. Please don’t answer all of them and just explain. I like figuring things out myself.

Check all of the side length combinations that can form a triangle—

a. 14, 22, 3

b. 17, 2, 18

c. 13, 13, 25

d. 7, 7, 14

Thanks!

Answer 1

The primary information you need is that the sum of any 2 sides of a triangle must exceed the third side..