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sir, please solve following answers:

1. the interior angles of a polygon are in a.p.  the smallest angle is 120 degree and common difference is 5 degree.find the number of sides of a polygon.

6 years ago


Answers : (1)


Dear sougata chatterjee

common difference between angel is 5

maximun intirior angel will be = 175

so 120+(n-1)*5 =175

   n= 12

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