The protractor to measure an angle

This video tutorial teaches how to use a protractor to measure angles. It begins with positioning the protractor at the vertex of the angle, ensuring one side aligns with the zero mark. The tutorial then guides viewers through counting the degrees to determine the angle's measurement, concluding with a reminder that degrees are the unit of measurement for angles.

What is the first step in using a protractor to measure an angle?

• Start counting from the 90-degree mark.

• Ensure the protractor is parallel to the angle.

• Align the protractor with the angle's bisector.

• Place the protractor's center at the angle's vertex.

When aligning the protractor, where should one side of the angle be placed?

• At the midpoint of the protractor.

• At the 180-degree mark.

• At the zero mark of the protractor.

• At the 90-degree mark.

What should you do after aligning one side of the angle with the zero mark?

• Check if the protractor is level.

• Start counting from zero along the protractor.

• Rotate the protractor to the left.

• Mark the midpoint of the angle.

How do you determine the measure of the angle using a protractor?

• By counting the degrees from zero to where the other side points.

• By subtracting the smaller angle from the larger one.

• By adding the numbers on both sides of the angle.

• By measuring the length of the angle's sides.

What is the unit used to measure angles?

• Radians

• Meters

• Degrees

• Inches