Using a Protractor to Measure Angles

The video tutorial explains how angles are formed and measured in degrees, using a protractor as the primary tool. It covers the basics of angles, the structure of a protractor, and the step-by-step process of measuring angles. The tutorial includes practical examples to illustrate the measurement process and concludes with a summary of the key points.

What is the definition of a degree in the context of measuring angles?

• A degree is a unit of time.

• A degree is a unit of length.

• A degree is 1 part out of 360 equal parts of a circle.

• A degree is a unit of weight.

What is the primary tool used to measure angles?

• Protractor

• Compass

• Ruler

• Calculator

How many degrees does a full circle have?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

When using a protractor, where should the center point be placed?

• On the vertex of the angle

• On the endpoint of one ray

• On the midpoint of the protractor

• On the outer edge of the protractor

What should you do if the second ray does not reach the protractor scale?

• Start measuring from the other side

• Use a different protractor

• Extend the line of the ray

• Ignore the measurement

How many degrees is angle ABC measured to be?

• 33 degrees

• 50 degrees

• 115 degrees

• 10 degrees

What is the measurement of angle DEF?

• 90 degrees

• 33 degrees

• 115 degrees

• 50 degrees