Sum of all interior angles of a nonagon is
1260o
1080o
1460o
1620o
The correct option is
A
Sum of all interior angles of a polygon with n sides = (n - 2)× 180o
Therefore, sum of all interior angles of a nonagon
= (9 - 2)× 180o = 7× 180o = 1260o
The measure of each interior angle of a regular nonagon is
Sum of all the interior angles of a polygon is _____________ .