Which triangles are similar to $$\triangle A B C$$ ? ![](http://admin.getprephub.com/media/editor/si13_20230201185917908014.png)

In $$\triangle A B C$$, $$A B=7, \quad B C=7, \quad A C=3 $$ In $$\triangle D E F$$, $$\triangle D E F, 5, \quad E F=5, \quad D F=6 $$ In $$\triangle G H I$$, $$\text { GH=5, HI =9, GI = 9} \text {, }$$ In $$\triangle A B C$$ and $$\triangle G H I$$, let's check if $$ \frac{A B}{G H}=\frac{B C}{H I}=\frac{A C}{G I} $$ $$\frac{A B}{G H}=\frac{7}{5}, \quad \frac{B C}{H I}=\frac{7}{9}, \quad \frac{A C}{G I}=\frac{3}{9}$$ $$\frac{A B}{G H} \neq \frac{B C}{H I} \neq \frac{A C}{G I}$$ Hence, $$\triangle A B C$$ is not similar to $$\triangle G H I$$. Similarly, in $$\triangle A B C$$ and $$\triangle D E F$$, $$\frac{A B}{D E} \neq \frac{B C}{E F} \neq \frac{A C}{D F}$$