Angle Degrees
Storyboard Description
Angle Degrees
Texte du Storyboard
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- la
- I hear "degrees" all the time. What are degrees when we are talking about angles?
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- 45
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- Degrees are a unit of measurement, like inches or pounds.
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- Degrees measure rotation or turn of an angle in reference to a full circle.
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- A sailor looks straight ahead through a spyglass at another ship. There is no turn, so he is looking at an angle of 0 degrees.
- The factors of 360 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, and 360
- Then he gets distracted by a bird and looks up. His head has turned upwards. Now he is looking at an angle of 45 degrees.
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- 72
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- 120
- 60
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- 90
- 45
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- In a full circle, there are 360 degrees. Each degree is 1/360 of a full circle.
- Image Attributions:Thermometer (https://www.flickr.com/photos/jz909/1451373852/) - jetsandzeppelins - License: Attribution (http://creativecommons.org/licenses/by/2.0/)100414-N-0696M-087 (https://www.flickr.com/photos/thejointstaff/4522012433/) - Chairman of the Joint Chiefs of Staff - License: Attribution (http://creativecommons.org/licenses/by/2.0/)
- Some think that 360 was chosen for the number of degrees in a circle because it is close to the number of days in a year.
- 360 also has many factors, so a circle can be divided into equal parts easily.
- Each circle has been divided into equal parts. The angle measurement of each part is outside each circle.
Attributions D'image
- 100414-N-0696M-087 - Chairman of the Joint Chiefs of Staff - (Licence Attribution )
- Thermometer - jetsandzeppelins - (Licence Attribution )
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