Measuring and Drawing Angles with a Protractor

The video tutorial explains how to use a protractor to measure and draw angles. It covers the basic structure of a protractor, including the semicircle shape, baseline, and tick marks. The tutorial demonstrates measuring angles from both the left and right sides of the protractor and provides step-by-step instructions for drawing angles. The video concludes with a summary of the key points covered.

What is the shape of a protractor?

• Quarter circle

• Triangle

• Semicircle

• Full circle

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How many degrees does each tick mark on a protractor represent?

• One degree

• Two degrees

• Five degrees

• Ten degrees

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CCSS.4.MD.C.6

What is the baseline on a protractor?

• A vertical line

• A line from 0 to 180 degrees

• A curved line

• A line from 0 to 90 degrees

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CCSS.4.MD.C.6

From which side of the protractor do we measure a 60-degree angle as shown in the video?

• Bottom

• Top

• Left

• Right

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CCSS.4.MD.C.6

What is the degree measurement of the angle shown in the video when measured from the right side?

• 40 degrees

• 180 degrees

• 60 degrees

• 100 degrees

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CCSS.4.MD.C.6

How do you align the protractor to measure an angle from the left?

• Align the vertex with the center hole

• Align the vertex outside the protractor

• Use the right baseline

• None of the above

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CCSS.4.MD.C.6

What is the first step in drawing a 100-degree angle from the left side?

• Draw a line from 0 to 100 degrees

• None of the above

• Mark 100 degrees on the paper

• Draw a dot at the center hole

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CCSS.4.MD.C.6

Where do you place the mark for zero degrees when drawing an angle from the right side?

• On the right baseline

• At the 100-degree mark

• On the left baseline

• At the center hole

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CCSS.4.MD.C.6

What is the final step in drawing a 100-degree angle from the right side?

• Draw a circle

• Draw a line from the vertex to the 100-degree mark

• Mark the center point

• Erase the baseline

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CCSS.4.MD.C.6

What tool is used to connect marks when drawing angles with a protractor?

• Pencil

• Compass

• Ruler

• Straight edge of the protractor

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CCSS.4.MD.C.6