Angle Measurement Techniques and Calculations

The video tutorial covers measuring angles that do not start at zero using a protractor. It provides two examples of calculating angles by subtracting the smaller angle from the larger one, using both the top and bottom numbers on the protractor. The first example results in an angle of 110 degrees, while the second example results in 50 degrees. The tutorial concludes with an invitation for questions.

What is the main focus of this week's lesson compared to last week's?

• Measuring angles with a compass

• Measuring angles with a ruler

• Measuring angles not starting at zero

• Measuring angles starting at zero

When using a protractor, what are the two possible measurements for the angle in the first example?

• 60 and 120 degrees

• 90 and 180 degrees

• 45 and 135 degrees

• 30 and 150 degrees

How do you calculate the angle measurement using subtraction in the first example?

• Divide the larger number by the smaller number

• Subtract the smaller number from the larger number

• Multiply the two numbers

• Add the two numbers

What is the final angle measurement for the first example?

• 120 degrees

• 100 degrees

• 110 degrees

• 90 degrees

In the second example, what are the initial top and bottom angle measurements?

• 60 and 120 degrees

• 70 and 90 degrees

• 80 and 100 degrees

• 50 and 130 degrees

How do you calculate the angle measurement in the second example using subtraction?

• Subtract the smaller number from the larger number

• Add the two numbers

• Divide the larger number by the smaller number

• Multiply the two numbers

What is the final angle measurement for the second example?

• 50 degrees

• 60 degrees

• 70 degrees

• 40 degrees

What should you do if you have questions about the lesson?

• Let the teacher know

• Ask a friend

• Ignore them

• Search online