Name each of the following triangles in two different ways: (you may judge the nature of the angle by observation)

Explanation

To name each triangle in two different ways based on their properties, we will analyze the given triangles one by one.

### Step-by-Step Solution:

1. **Triangle 1:**
- **Observation:** The triangle has two sides equal (5, 5).
- **First Name:** Isosceles Triangle (because it has two equal sides).
- **Second Name:** Acute Triangle (because all angles are less than 90 degrees).
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