Question

if $lm = 9$ and $mn = 9$, what is $ln$?
write your answer as a decimal or integer.

Explanation:

Step1: Identify the segment addition

Since \( M \) is on segment \( LN \), we use the segment addition postulate: \( LN = LM + MN \).

Step2: Substitute the given values

We know \( LM = 9 \) and \( MN = 9 \), so substitute these into the formula: \( LN = 9 + 9 \).

Step3: Calculate the sum

\( 9 + 9 = 18 \).

Answer:

18