Two triangles are congruent if two sides and the included angle of one are equal to the corresponding sides and the included angle of the other triangle. GIVEN : Two triangles `A B C` and `D E F` such that `A B=D E ,A C=D F` and `/_A=/_D` PROVE : ` A B C~= D E F` Figure

Explanation

To prove that triangles ABC and DEF are congruent using the given information, we will apply the Side-Angle-Side (SAS) congruence criterion.

### Step-by-Step Solution:

1. **Identify Given Information**:
- We have two triangles, ABC and DEF.
- The sides are given as:
- AB = DE
...