Classify angles as straight, right, acute, or obtuse in this Grade 3 geometry worksheet.

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

Here’s how to tell them apart:
- Right angle: Looks like the corner of a square or a book. It has a little square symbol in some drawings, but even without it, if it looks exactly 90 degrees (like an L), it’s right.
- Acute angle: Smaller than a right angle — it looks “sharp” or “pointy,” like the tip of a slice of pizza.
- Obtuse angle: Bigger than a right angle but not flat — it looks “wide open,” like a chair reclined back.
- Straight angle: A straight line — 180 degrees, like a ruler laid flat.

Now let’s go row by row:

---

First row:

1. First angle: Looks like an L → Right
2. Second angle: Wider than an L, but not flat → Obtuse
3. Third angle: Just a straight line with arrows on both ends → Straight

---

Second row:

4. First angle: Pointy, smaller than an L → Acute
5. Second angle: Perfect L shape → Right
6. Third angle: Also pointy, smaller than an L → Acute

---

Third row:

7. First angle: Wide open, bigger than an L → Obtuse
8. Second angle: Straight line again → Straight
9. Third angle: Wide open, bigger than an L → Obtuse

---

Let me double-check each one to make sure I didn’t mix any up.

✔ Row 1: Right, Obtuse, Straight
✔ Row 2: Acute, Right, Acute
✔ Row 3: Obtuse, Straight, Obtuse

All match the definitions. No mistakes.

Final Answer:
Right
Obtuse
Straight
Acute
Right
Acute
Obtuse
Straight
Obtuse