# Worksheet: Measuring Angles

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

Q1:

The diagram shows a protractor being used to measure the angle . What is the value of , in degrees? 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 .

Q3:

The diagram shows a protractor being used to measure the angle . What is the value of , in degrees? 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 Q5:

The diagram shows a protractor being used to measure the angle . What is the value of , in degrees? 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? 