Angle classification worksheet for students to identify and classify angles as acute, obtuse, right, straight, or reflex.

Let’s go step by step to classify each angle in the worksheet.

We are given 9 angles to classify. The types we can choose from are:
- Acute — less than 90°
- Right — exactly 90°
- Obtuse — greater than 90° but less than 180°
- Straight — exactly 180°
- Reflex — greater than 180°

We’ll look at each angle one by one and decide which category it fits into.

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Row 1:

1. First angle (top left) — Looks like a perfect “L” shape. That’s a right angle.
→ Right

2. Second angle (top middle) — Narrow, sharp point — definitely less than 90°.
→ Acute

3. Third angle (top right) — Wide open, more than 90° but not a straight line.
→ Obtuse

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Row 2:

4. Fourth angle (middle left) — The arc goes around the outside — that means it’s more than 180°.
→ Reflex

5. Fifth angle (middle center) — Again, a perfect “L” shape — same as first one.
→ Right

6. Sixth angle (middle right) — Sharp corner, less than 90°.
→ Acute

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Row 3:

7. Seventh angle (bottom left) — A straight line with a semicircle on top — that’s 180°.
→ Straight

8. Eighth angle (bottom center) — The arc wraps around more than halfway — definitely over 180°.
→ Reflex

9. Ninth angle (bottom right) — Wide open, more than 90°, but not a full straight line.
→ Obtuse

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Now let’s write them in order:

1. Right
2. Acute
3. Obtuse
4. Reflex
5. Right
6. Acute
7. Straight
8. Reflex
9. Obtuse

Final Answer:
Right, Acute, Obtuse, Reflex, Right, Acute, Straight, Reflex, Obtuse