What is the sum of all the angles in a tridecagon.

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A 1980°
B 198°
C 19.008°
D CANNOT BE DETERMINED

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Answer: A. 1980°

The sum of all the angles in a tridecagon is 1980°.
A a simple formula to find the sum of all the angles in any polygon is to subtract the number of sides the polygon has by 2 and then multiplying it by 180.

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What is the sum of all the angles in a tridecagon.

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