Question

1. find mo.

l 15 m n 4 o
25

Explanation:

Step1: Identify the total length and part - lengths

The total length $LO = 25$, and $LM=15$, $NO = 4$.

Step2: Use the segment - addition postulate

We know that $LO=LM + MO$. Also, $MO=LO - LM - NO$.

Step3: Calculate MO

$MO=25-(15 + 4)=25 - 19=6$.

Answer:

$6$