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OpenStudy (anonymous):
What is the sum of a polygon that has 20 sides?
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OpenStudy (anonymous):
Do you mean the sum of the angles?
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
The sum of the angles in any polygon with n sides is: \[180(n-2)\] Plugging in 20 for n we find: \[180(20-2)=180(18)=3240 degrees\]
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