MCQ
If in triangles $A B C$ and $D E F, \frac{A B}{D E}=\frac{B C}{F D}$, then they will be similar, when
- A$\angle B=\angle E$
- B$\angle A=\angle D$
- ✓$\angle B=\angle D$
- D$\angle A=\angle F$
✓
Answer
Correct option: C.
$\angle B=\angle D$
(c) : Given, in $\triangle A B C$ and $\triangle E D F, \frac{A B}{D E}=\frac{B C}{F D}$
So, $\triangle A B C \sim \triangle E D F$
if $\angle B=\angle D$
(By SAS similarity criterion)
So, $\triangle A B C \sim \triangle E D F$
if $\angle B=\angle D$
(By SAS similarity criterion)
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