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

1260°

Step-by-step explanation:

Nonagon is a 9 sided polygon.

The sum of the interior angles of any polygon is given by:

180°(n - 2) , where n is the number of sides

For our 9 sided polygon the sum of its interior angles is;

180°(9 - 2) = 1260°

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

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step-by-step explanation: