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18 February, 05:52

The sum of the measure of the interior angles of a polygon is 2160°. What polygon is it? 14-gon 12-gon 13-gon 15-gon

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  1. 18 February, 07:43
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    It is a 14-gon.

    Step-by-step explanation:

    Sum of internal angles of an n sided polygon = 180 (n - 2) degrees.

    2160 = 180 (n - 2)

    2160 = 180n - 360

    '180n = 2520

    n = 2520 / 180

    = 14.
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