Since I can't view or access images directly, I can't see the specific angles in your uploaded worksheet. However, I can guide you through how to solve this type of problem and explain the process step by step.
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How to Measure Angles Using a Protractor
1.
Place the Protractor Correctly:
- Align the center point (usually marked with a cross or dot) of the protractor on the
vertex of the angle.
- Make sure one side of the angle lines up with the
0-degree line on the protractor.
2.
Read the Measurement:
- Look at where the other side of the angle crosses the protractor’s scale.
- Use the correct scale:
- If the angle opens to the
right, use the
outer scale.
- If it opens to the
left, use the
inner scale.
- Read the degree measurement at that point.
3.
Determine if It's Acute, Right, or Obtuse:
-
Acute: Less than 90°
-
Right: Exactly 90°
-
Obtuse: Greater than 90° but less than 180°
-
Straight: Exactly 180°
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Example Walkthrough (Hypothetical):
Let’s assume the angles look like this:
1. A small angle opening to the right → might be around
45°
2. A narrow angle → maybe
30°
3. An angle close to a right angle → could be
85°
4. A wide angle → possibly
120°
5. A very sharp angle → maybe
15°
6. A moderate angle → perhaps
60°
7. A slightly open angle → maybe
75°
8. A reflex angle (greater than 180°) → likely
220°
9. A full half-circle → probably
180°
10. A narrow angle → maybe
25°
> Note: Without seeing the image, these are just examples. You must measure each one yourself.
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Tips for Accuracy:
- Always check whether the angle is acute, right, or obtuse before reading — it helps verify your answer.
- Double-check which scale you're using (inner vs outer).
- Keep the protractor steady while reading.
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Final Answer Format:
For each question, write the measured angle in degrees.
Example:
1. This angle is
45 degrees.
2. This angle is
30 degrees.
... and so on.
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If you can describe the angles (e.g., “angle 1 looks like a right angle,” or “angle 5 is very narrow”), I can help estimate them!
Parent Tip: Review the logic above to help your child master the concept of measuring angle worksheet 4th grade.
