Math worksheet for students to practice measuring angles using a protractor.

To solve this task, we need to determine the measure of each angle shown on the protractors. Here’s how we can do it step by step:

1. Identify the Angle Type: Look at the angle and decide if it's acute (less than 90 degrees), right (exactly 90 degrees), or obtuse (more than 90 degrees but less than 180 degrees).

2. Read the Protractor:
- Place the center of the protractor on the vertex of the angle.
- Align one side of the angle with the zero line of the protractor.
- Read the angle where the other side of the angle crosses the protractor scale.

3. Check Both Scales: Protractors have two scales. Make sure you're reading the correct one based on which side you aligned with zero.

Let's apply these steps to each angle:

1. Angle 1: The angle looks like it's slightly more than 90 degrees. Reading the protractor, it measures approximately 100 degrees.
2. Angle 2: This angle is less than 90 degrees. Reading the protractor, it measures approximately 40 degrees.
3. Angle 3: This angle is also less than 90 degrees. Reading the protractor, it measures approximately 45 degrees.
4. Angle 4: This angle is more than 90 degrees. Reading the protractor, it measures approximately 120 degrees.
5. Angle 5: This angle is more than 90 degrees. Reading the protractor, it measures approximately 135 degrees.
6. Angle 6: This angle is less than 90 degrees. Reading the protractor, it measures approximately 15 degrees.
7. Angle 7: This angle is less than 90 degrees. Reading the protractor, it measures approximately 45 degrees.
8. Angle 8: This angle is more than 90 degrees. Reading the protractor, it measures approximately 105 degrees.
9. Angle 9: This angle is less than 90 degrees. Reading the protractor, it measures approximately 15 degrees.
10. Angle 10: This angle is less than 90 degrees. Reading the protractor, it measures approximately 15 degrees.

Final Answer:
1. 100 degrees
2. 40 degrees
3. 45 degrees
4. 120 degrees
5. 135 degrees
6. 15 degrees
7. 45 degrees
8. 105 degrees
9. 15 degrees
10. 15 degrees