Question

∆ABC~∆DEF then AB/DE=_/EF​

Answer 1

∆ABC~∆DEF

$\: \: \frac{AB}{DE} = \frac{BC}{EF}$

Answer 2

Answer :-

Given that,

∆ABC~∆DEF

Therefore,

$\frac{AB}{DE} = \frac{BC}{EF}$

Please refer the attachment, it will help you understand better.

• Why BC was put at that place?
• According to question, ABC and DEF are congruent,so AB and DE are corresponding to each other and are CPCT. Similarly, BC corresponds to EF and is CPCT.

NOTE - CPCT means corresponding parts of congruent triangles.

Hope the answer helps you