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Find the measure of an interior angle of a rectangular dodecagon (12 sided polygon)

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4 votes

Answer:

150°

Explanation:

I assume the dodecagon is regular, and that you meant "regular" instead of "rectangular."

For any regular, convex polygon with n sides,

the measure of one interior angle is (n - 2)180°/n.

For a dodecagon, n = 12.

m = (12 - 2)(180°)/12

m = 150°

User Thierry Daguin
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