For similar triangle is:
For similar triangle:
[tex]\begin{gathered} \angle A=\angle X \\ \angle B=\angle Y \\ \angle C=\angle Z \end{gathered}[/tex]
and
[tex]\frac{AB}{XY}=\frac{BC}{YZ}=\frac{AC}{XY}[/tex]
So
[tex]\angle L=59[/tex]
both triangle then :
[tex]\frac{LE}{LM}=\frac{ED}{MN}=\frac{LD}{LN}[/tex]
LE=11 , LD=9 , LM=90, LN=110
[tex]\begin{gathered} \frac{ED}{MN}=\frac{LD}{LN} \\ \frac{ED}{MN}=\frac{9}{10} \end{gathered}[/tex]
For similar triangle ratio of ED and MN is 9/10
