We are given that:

• $KL = 4$
• $LM = 10$

We need to find the total length of $KM$.

Since point $L$ lies on line segment $KM$, the total length of $KM$ is the sum of $KL$ and $LM$.

$KM = KL + LM = 4 + 10 = 14$

Thus, the length of $KM$ is $14$.

Would you like more details, or do you have any other questions?

Here are 5 related questions to expand on this:

1. How do we calculate the midpoint of a line segment like $KM$?
2. If $L$ is the midpoint of $KM$, what are the lengths of $KL$ and $LM$?
3. How would we calculate the distance between points $K$ and $M$ using their coordinates?
4. What if $L$ were not on the segment $KM$ but elsewhere; how would that change the solution?
5. How can the length of a line segment change in different coordinate planes?

Tip: When a point divides a line segment into two parts, the sum of the two parts always equals the total length of the segment.