If `triangle ABC cong triangle DEF` then
`angleE` = ______

Answer

To solve the question, we need to determine the value of angle E given that triangle ABC is congruent to triangle DEF.

### Step-by-Step Solution:

1. **Understanding Congruence of Triangles**:
- When two triangles are said to be congruent, it means that all their corresponding sides and angles are equal. This is denoted as triangle ABC ≅ triangle DEF.

2. **Identifying Corresponding Parts**:
- From the congruence of triangles ABC and DEF, we can identify the corresponding angles:
- Angle A corresponds to Angle D
- Angle B corresponds to Angle E
- Angle C corresponds to Angle F

3. **Finding Angle E**:
- Since we know that angle B corresponds to angle E, we can conclude that:
- Angle E = Angle B

4. **Final Answer**:
- Therefore, the value of angle E is equal to angle B.

### Conclusion:
So, the answer to the question is:
- Angle E = Angle B