Prove your answer as to why 5 mm, 10 mm, and 1 mm will or will not form a triangle. HELP ASAP.

10-5=5 and 10+5=15 so it would need to be greater than 5 and less than 15 for those two

For 5 and 1 to work
5-1=4 and 5+1=6 so it would need to be greater than 4 and less than 6

And 10-1=9 and 10+1=11 so it would need to be greater than 9 and less than 11

Is all of these solutions 5,10,and 1 wouldn't work

I hope this helps

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