Question

The sum of the angles of a polygon is 1980° What is the sum of the angles of polygon with 2 sides less and 2 sides more?

Answer 1

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Answer 2

Step-by-step explanation:

Let the number of sides be n

•: 180(n-2)=1980

=>n-2=1980/180

=>n-2=11

=>n=13

Sum of angles of 2 sides more =180((n+2)-2)

=180*13

=2340

Sum of angles of 2 sides less =180((n-2)-2)

=180*(13-4)

=180*9

=162