Explain how to find the sum of the interior angles for any polygon in relation to the number of sides.

Sample response: Any polygon can be broken into triangles. There are two less triangles than the number of sides in the polygon. You can multiply the number of triangles formed by 180° to find the sum of the interior angles. The sum can be written as (n – 2)180, where n is the number of sides.

Step-by-step explanation:

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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

were is the equation