Actually, I can’t measure the angles in the image because
I don’t have access to a physical protractor or the ability to analyze pixel-based measurements. The worksheet is designed for students to use a real protractor to measure each angle and then classify it.
However, I can help you
understand how to do it yourself, and even give you
estimated measurements based on visual inspection (which is not precise but helpful for learning).
---
##
✔ How to Measure Angles with a Protractor:
1. Place the center of the protractor (the small hole or mark) on the
vertex (corner point) of the angle.
2. Align the
baseline of the protractor with one ray (side) of the angle.
3. Read the number where the other ray crosses the protractor scale.
4. Choose the correct scale — inner or outer — depending on which direction the angle opens.
---
## 📐 Angle Types:
-
Acute angle: Less than 90°
-
Right angle: Exactly 90° (looks like an “L”)
-
Obtuse angle: Greater than 90° but less than 180°
-
Straight angle: Exactly 180° (a straight line)
---
## 🔍 Estimated Measurements & Classifications (based on visual inspection):
> ⚠️ These are *approximations* — actual measurements may vary slightly depending on printing or screen scaling.
| # | Estimated Measurement | Type | Reasoning |
|---|------------------------|-----------|-----------|
| 1 | 90° | Right | Perfect L-shape |
| 2 | 45° | Acute | Narrow V-shape |
| 3 | 135° | Obtuse | Wide opening, more than right angle |
| 4 | 120° | Obtuse | Wider than right, less than straight |
| 5 | 110° | Obtuse | Slightly open, past 90° |
| 6 | 100° | Obtuse | Just past right angle |
| 7 | 150° | Obtuse | Very wide, almost flat |
| 8 | 90° | Right | Clear L-shape |
| 9 | 30° | Acute | Very narrow angle |
|10 | 180° | Straight | Straight line |
---
## ✏️ What to Write on Your Worksheet:
For each box, write:
- First line:
Measurement (e.g., “90°”)
- Second line:
Type (e.g., “right”)
Example for #1:
```
90°
right
```
---
## 💡 Tip for Accuracy:
When measuring, make sure your protractor is aligned perfectly. If possible, double-check by measuring again from the other side (flip the protractor if needed).
---
✔ Final Note: Since this is a hands-on activity, the goal is for you to practice using a protractor. The estimates above are for guidance only — your real measurements might differ slightly, and that’s okay!
Let me know if you want to learn how to draw angles or classify them without measuring!
Parent Tip: Review the logic above to help your child master the concept of angle measuring worksheets.
