Question

Which congruence criterion do you use in the following?
Given, AC = DF, AB = DE, BC = EF
So, $\Delta ABC\cong \Delta DEF$

Answer 1

Given that AC = DF, AB = DE, BC =EF
The three sides of one triangle are equal to the three corresponding sides of another triangle.
So,by SSS congruence criterion,
$\Delta ABC\cong \Delta DEF$