∠I ≅∠L
1) Given that the triangles are similar, then we can write:
[tex]\begin{gathered} \frac{KL}{HI}=\frac{JL}{GI} \\ \frac{18}{12}=\frac{27}{18}\text{ =}\frac{3}{2} \end{gathered}[/tex]
Notice that the sides are proportional to k=3/2.
2) Since we need to prove that these triangles are similar under SAS -Side, Angle Side, examining the picture we can state that one of their corresponding angles are congruent so
[tex]\begin{gathered} \angle I\cong\angle L \\ \end{gathered}[/tex]
3) Having one of these angles as congruent would fit to prove that these triangles are similar by SAS similarity.
