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Question

Sum of all interior angles of a nonagon is


  1. 1080o

  2. 1460o

  3. 1260o

  4. 1620o


Solution

The correct option is C

1260o


Sum of all interior angles of a polygon with n sides = (n - 2) X 180o

Therefore, sum of all interior angles of a nonagon

= (9 - 2) X 180o
= 7 X 180o
= 1260o

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