Question

In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form: 

 

Answer 1

We have: 

`(AB)/(DF)=3/6=1/2` and `(BC)/(DE)=4.5/9=1/2` 

But , ∠ABC ≠ ∠EDF (Included angles are not equal)
Thus, this triangles are not similar.