Measuring Angles with a Protractor

This video tutorial covers the measuring angles module, created by Omar Rizwan. It explains how to use a digital protractor tool to measure angles accurately, with examples of measuring 130, 40, and 150-degree angles. The video also highlights common mistakes to avoid when using a protractor.

Who created the measuring angles module?

• Khan Academy

• Omar Rizwan

• A software company

• A college professor

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CCSS.4.MD.C.6

Which year was the measuring angles module created?

• 2011

• 2012

• 2013

• 2010

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CCSS.4.MD.C.6

What tool is used to measure angles in the video?

• Compass

• Ruler

• Protractor

• Calculator

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CCSS.4.MD.C.6

What is the correct way to position a protractor to measure an angle?

• Align the 0 degrees mark with one side of the angle

• Place the center anywhere on the angle

• Align the 180 degrees mark with one side

• No specific alignment needed

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CCSS.4.MD.C.6

What degree was the first angle measured in the video?

• 60 degrees

• 150 degrees

• 130 degrees

• 40 degrees

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CCSS.4.MD.C.6

What is the degree of the second angle measured in the tutorial?

• 130 degrees

• 40 degrees

• 150 degrees

• 60 degrees

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CCSS.4.MD.C.6

How can the protractor be incorrectly positioned according to the tutorial?

• 0 degrees not aligned with any side

• Center not at the vertex

• Protractor upside down

• All of the above

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CCSS.4.MD.C.6

What degree was the third angle measured in the video?

• 150 degrees

• 40 degrees

• 130 degrees

• 60 degrees

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What should you avoid when measuring angles with a protractor?

• Using a digital tool

• Measuring inside the protractor

• Measuring outside the protractor

• Measuring exactly

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CCSS.4.MD.C.6

What degree was the last angle measured in the video?

• 150 degrees

• 130 degrees

• 40 degrees

• 60 degrees

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CCSS.4.MD.C.6