Students identify and label angles as acute, obtuse, or right in this geometry worksheet.

To solve the problem, we need to classify each angle as acute, obtuse, or right. Here's a step-by-step explanation of how to do this:

Definitions:

1. Acute Angle: An angle that measures less than 90 degrees.
2. Right Angle: An angle that measures exactly 90 degrees.
3. Obtuse Angle: An angle that measures more than 90 degrees but less than 180 degrees.

Solution:

Let's analyze each angle one by one:

#### 1.
- Angle A (between B and C): This angle is less than 90 degrees.
- Classification: Acute

#### 2.
- Angle E (between F and D): This angle is exactly 90 degrees.
- Classification: Right

#### 3.
- Angle G (between H and I): This angle is more than 90 degrees.
- Classification: Obtuse

#### 4.
- Angle J (between K and L): This angle is less than 90 degrees.
- Classification: Acute

#### 5.
- Angle M (between N and O): This angle is less than 90 degrees.
- Classification: Acute

#### 6.
- Angle P (between Q and R): This angle is exactly 90 degrees.
- Classification: Right

#### 7.
- Angle S (between T and U): This angle is more than 90 degrees.
- Classification: Obtuse

#### 8.
- Angle V (between W and X): This angle is less than 90 degrees.
- Classification: Acute

#### 9.
- Angle Z (between Y and A): This angle is more than 90 degrees.
- Classification: Obtuse

#### 10.
- Angle D (between B and C): This angle is more than 90 degrees.
- Classification: Obtuse

#### 11.
- Angle E (between F and G): This angle is exactly 90 degrees.
- Classification: Right

#### 12.
- Angle I (between H and J): This angle is less than 90 degrees.
- Classification: Acute

Final Answer:

```
1. Acute
2. Right
3. Obtuse
4. Acute
5. Acute
6. Right
7. Obtuse
8. Acute
9. Obtuse
10. Obtuse
11. Right
12. Acute
```

Thus, the final answer is:
\boxed{Acute, Right, Obtuse, Acute, Acute, Right, Obtuse, Acute, Obtuse, Obtuse, Right, Acute}