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    Correct use of a Protractor while measuring angles.

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    When measuring angles using a protractor, how do you decide whether to use the top scale or the botton scale?

    © BrainMass Inc. brainmass.com December 24, 2021, 4:43 pm ad1c9bdddf
    https://brainmass.com/math/geometry-and-topology/correct-protractor-measuring-angles-3604

    Solution Preview

    Usually, the bottom scale starts with zero on the right edge and increases to the left ending with 180 degrees on the leftmost edge. The top scale, on the other hand, starts with zero on the left edge and increase to the right ending with 180 degrees on the rightmost ...

    Solution Summary

    This solution contains a very clear explanation of how to use a protractor correctly to measure angles. Specifically, it provides a step-by-step explanation of how and when to use the top scale and the bottom scale.

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