Answer:
41m, 30m, 15m
Step-by-step explanation:
A triangle can only be formed if the sum of any 2 side lengths adds up to be greater than the length of the other side.
The combination 41m, 30m, 15m is the only one where any 2 side lengths adds up to be greater than the other side.
We can test this:
41 + 30 > 15
30 + 15 > 41