In $ riangle A B C$ and $ riangle D E F, \frac{A B}{D E}=\frac{B C}{F D}$. Which of the following

Question

In $	riangle A B C$ and $	riangle D E F, \frac{A B}{D E}=\frac{B C}{F D}$. Which of the following makes the two triangles similar?\

Professor PC Thomas Classes · Answer

(b): Given, In $	riangle A B C$ and $	riangle D E F, \frac{A B}{D E}=\frac{B C}{F D}$\ ∴ Two triangles are similar if one angle of a triangle is equal to one angle of the other triangle and the sides including these angles are proportional. So, by SAS criterion, $\frac{A B}{D E}=\frac{B C}{D F}$ and $\angle B=\angle D$\