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Using the 180 Degree visual protractor (AngleViewer) to understand angles

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Uploaded by on Aug 8, 2008

See www.learningviewer.com for more information.
The 180 Degree AngleViewer can help students:
• Measure obtuse or acute angles with a single color.
• Visualize supplementary angles with the use of two colors.
• Understand reflex angles.
• See angles in relationship to a 360° circle.
In addition:
• Opposite angles stand out as equal.
• Transparent colors enable easy use on an overhead projector.
• Retains angle measurement when moved.

Category:

Education

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License:

Standard YouTube License

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  • wow

  • Refleax angle?

    i need help with it

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