The sum of the measure of the interior angles of a polygon is 1980°. What polygon is it? 10-gon 11-gon 12-gon 13-gon

Question

The sum of the measure of the interior angles of a polygon is 1980°. What polygon is it? 10-gon 11-gon 12-gon 13-gon

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Arianna 2 months 2021-10-15T17:04:43+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-15T17:05:43+00:00

    Answer:13

    Step-by-step explanation:

    0
    2021-10-15T17:06:38+00:00

    Answer:

    13-gon

    Step-by-step explanation:

    The sum of the interior angles of a polygon with n sides is:

    S = 180° (n − 2)

    If S = 1980°, then:

    1980° = 180° (n − 2)

    11 = n − 2

    n = 13

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45:7+7-4:2-5:5*4+35:2 =? ( )