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The equation for and interior angle of an n sided shape is (n-2)180/n

In this case we have a 12 sided shape. Plugging n=12 into the equation gives us:

(12-2)180/12

= 10x180/12

= 150

Thus an interior angle of a 12 sided shape would be 150 degrees.

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Q: What are the interior angles of a 12 sided shape?
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