Question

Point M is on line segment \overline{LN} LN . Given LM=5LM=5 and LN=12,LN=12, determine the length \overline{MN}. MN .

Answer 1

Answer: 7 units.

Step-by-step explanation:

Given: Point M is on line segment $\overline{LN}$.

So, point M must divide $\overline{LN}$ into $\overline {LM}$ and $\overline{MN}$.

Such that , $\overline{LN}=\overline{LM}+\overline{MN}$   (i)

Since,  $\overline{LM} = 5$  units and $\overline{LN} =12$ units  , then we will put values in (i), we will get

$12=5+\overline{MN}\\\\\Rightarrow\overline{MN}=12-5=7$

Hence, the length of $\overline{MN}$ is 7 units.