Students identify acute, obtuse, and right angles in this educational worksheet.

Let’s go through each angle one by one and figure out what type it is.

We have three types to choose from:
- Acute – smaller than a right angle (less than 90°), looks “sharp” or “pointy”
- Obtuse – bigger than a right angle but less than a straight line (between 90° and 180°), looks “wide” or “open”
- Right – exactly 90°, like the corner of a square or book

Now let’s look at each numbered angle:

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Angle 1: This angle is very small — definitely less than 90°. So it’s acute.

Angle 2: This looks like an L-shape — perfect corner. That’s a right angle.

Angle 3: This angle is wide open — more than 90°, but not flat. So it’s obtuse.

Angle 4: Again, this is an L-shape — same as #2. So it’s right.

Angle 5: This angle is small — pointy, less than 90°. So it’s acute.

Angle 6: This one is also wide — bigger than 90°. So it’s obtuse.

Angle 7: Wide open again — clearly more than 90°. So it’s obtuse.

Angle 8: Very narrow — sharp point. Less than 90°. So it’s acute.

Angle 9: Also wide — more than 90°. So it’s obtuse.

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Final Answer:
1. acute
2. right
3. obtuse
4. right
5. acute
6. obtuse
7. obtuse
8. acute
9. obtuse