Yes, that's correct! The problem you provided is related to the Segment Addition Postulate, which is a fundamental concept in geometry. The Segment Addition Postulate states that if a point $B$ lies on a line segment $AC$, then the total length of the segment $AC$ is the sum of the lengths of segments $AB$ and $BC$. Mathematically, it is expressed as:

$AC = AB + BC$

In the context of angles, a similar concept called the Angle Addition Postulate applies. It states that if a point $D$ lies in the interior of an angle $\angle ABC$, then the measure of $\angle ABC$ is the sum of the measures of $\angle ABD$ and $\angle DBC$. This can be written as:

$m\angle ABC = m\angle ABD + m\angle DBC$

These postulates are fundamental because they allow us to break down segments and angles into smaller, more manageable parts, making it easier to solve problems involving them.

Would you like to explore more examples or have any further questions about this topic?

Here are some questions that build on this concept:

1. How would the Segment Addition Postulate apply if $B$ was the midpoint of $AC$?
2. Can the Angle Addition Postulate be used to solve problems involving overlapping angles? How?
3. How would you find the value of $x$ if both segments $AB$ and $BC$ were given in terms of $x$?
4. How is the Segment Addition Postulate used in coordinate geometry, particularly when dealing with points on a line?
5. How would you apply the Angle Addition Postulate in a situation where multiple angles share a common vertex?

Tip: When working with the Segment Addition or Angle Addition Postulate, always ensure that the points or angles are correctly identified in the context of the problem to avoid confusion.