Understanding Protractor Usage

What is the first step in measuring an angle with a protractor?

• Align the protractor with the angle's base

• Identify the type of angle

• Read the angle measurement

• Extend the angle's sides

How do you ensure the protractor is correctly aligned with the angle?

• Place the protractor anywhere on the angle

• Align the central point with the vertex

• Align the protractor with the angle's tip

• Use the protractor's edge

What should you do after aligning the protractor's reference line with the angle's base?

• Read the angle measurement

• Swivel the protractor

• Check the angle type

• Extend the angle

Why is it important to know the angle type before reading the measurement?

• To decide if the angle needs extending

• To choose the correct protractor

• To determine the correct scale to read

• To ensure the protractor is aligned

What feature does a protractor with a hinged arm provide?

• It helps measure angles that are too short

• It provides a digital reading

• It can measure angles over 180°

• It allows for more accurate readings