Identify and label each angle as acute, obtuse, or right in this educational geometry worksheet.

To solve this worksheet, we need to look at each angle and decide if it is acute, obtuse, or right.

Here is a quick reminder of what those mean:
* Acute Angle: Smaller than a corner of a square (less than 90°). It looks sharp or narrow.
* Right Angle: Exactly like the corner of a square (90°). It often has a little square box drawn in the corner.
* Obtuse Angle: Wider than a corner of a square (more than 90°) but not a straight line. It looks wide open.

Let's go through them one by one:

1. Angle ABC: This angle is narrow and smaller than a square corner. -> Acute
2. Angle DEF: There is a small square symbol in the corner. This means it is exactly 90 degrees. -> Right
3. Angle GHI: This angle is very wide, much wider than a square corner. -> Obtuse
4. Angle JKL: This angle is narrow and sharp. -> Acute
5. Angle MNO: This angle is narrow. -> Acute
6. Angle PQR: There is a small square symbol in the corner. -> Right
7. Angle STU: This angle is wide open. -> Obtuse
8. Angle VWX: This angle is narrow and sharp. -> Acute
9. Angle YZA: This angle is wide open. -> Obtuse
10. Angle BCD: This angle is wide open. -> Obtuse
11. Angle EFG: There is a small square symbol in the corner. -> Right
12. Angle HIJ: This angle is narrow and sharp. -> 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