Step-by-step explanation:
It is given that,
LM = 4x, MN = 5 and LN = 9x
Note :Consider that L is mid point of M and N
MN = LM + LN
Putting all values, we get :
5 = 4x + 9x
5 = 13 x
x = 5/13
Put the value of x in, LN = 9x
[tex]LN=9\times \dfrac{5}{13}\\\\LN=3.461[/tex]
or
[tex]LN=\dfrac{45}{13}\\\\\text{or}\\\\LN=3\dfrac{6}{13}[/tex]