###### Asked in Math and Arithmetic, Algebra, Geometry

Math and Arithmetic

Algebra

Geometry

# What is the sum of the measures of the interior angles of a 20 sided polygon?

## Answer

###### Wiki User

###### 04/28/2010

The formula that I use is (n-2)180 where n=number of sides. Plug in 20 and you get

(20-2)180

(18)180

3240 degrees

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