To bisects a segment is divide into two equal parts the segment. To bisects a segment you measure the total lenght and then divide that measure into 2.
Example: You have a line of 15 feet to bisect that line you divide the measure into 2:
![(15ft)/(2)=7.5ft](https://img.qammunity.org/2023/formulas/mathematics/college/40htmsqvmfs307fldcoekssssjfntez8em.png)
Then, you put a line at 7.5ft of endpoints of the line:
Line n bisects line m