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10 May, 21:49

What is the sum of the interior angles of a convex nonagon?

1620°

1800°

1260°

3240°

+2
Answers (1)
  1. 10 May, 22:09
    0
    1,260°

    Step-by-step explanation:

    Nonagon is a 9 sided polygon

    Exterior angle = 360 : 9

    = 40

    Interior angle + exterior angle = 180

    Interior angle = 180 - 40

    = 140°

    Sum of interior angles = 140° * 9

    = 1,260°
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