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    Angles and their Link to the Number of Sides of a Polygon

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    Given the following measures of a vertex angle of a regular polygon, determine how many sides it has?
    a. 150 degrees

    b. 156 degrees

    c. 174 degrees

    d. 178 degrees

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    Solution Preview

    Solution. Notice that the sum of all angles in regular n-polygon is

    (n-2)*Pi. Since all ...

    Solution Summary

    The link between internal angles and the number of sides of a polygon is shown. A general formula is presented.