# Worksheet: Measuring Angles

In this worksheet, we will practice identifying correct and incorrect uses of protractors for measuring angles.

**Q2: **

Chloe uses a protractor to measure the angle , as shown in the diagram. She gets a value of . Which of the following statements explains why this answer is incorrect?

- AThe maximum resolution of the protractor is , so the angle should be measured as .
- BThe resolution of the protractor is , so the angle should be measured as .
- CThe center of the protractor was not placed at the vertex of the two lines that form the angle .

**Q4: **

Which of the following shows the correct position in which a protractor must be placed in order to measure the angle ?

- A
- B
- C
- D

**Q6: **

Which of the following items can be used to measure angles?

- AA meter ruler
- BA protractor
- CA micrometer
- DA balance
- EA thermometer

**Q7: **

The diagram shows two straight lines that intersect to form an obtuse angle and a reflex angle between them. A protractor is positioned at the intersection between the two lines.

What is the size of the obtuse angle made by the lines?

- A
- B
- C
- D
- E

What is the size of the reflex angle made by the lines?

- A
- B
- C
- D
- E

**Q8: **

The diagram shows two straight lines that intersect to form an obtuse angle and a reflex angle between them. A protractor is positioned at the intersection between the two lines. What is the size of the reflex angle made by the lines?

**Q9: **

The diagram shows two straight lines that intersect to form an obtuse angle and a reflex angle between them. A protractor is positioned at the intersection between the two lines. What is the size of the reflex angle made by the lines?

**Q10: **

The diagram shows two straight lines that intersect to form an acute angle and a reflex angle between them. A protractor is positioned at the intersection between the two lines. What is the size of the reflex angle made by the lines?

**Q11: **

The diagram shows two straight lines that intersect to form an acute angle and a reflex angle between them. A protractor is positioned at the intersection between the two lines. What is the size of the reflex angle made by the lines?