SOLUTION: How many sides does a polygon have if one of its interior angles measures 120 degrees and each successive angle is 5 degrees more?

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Question 616896: How many sides does a polygon have if one of its interior angles measures 120 degrees and each successive angle is 5 degrees more?
Answer by Alan3354(69443) About Me  (Show Source):
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How many sides does a polygon have if one of its interior angles measures 120 degrees and each successive angle is 5 degrees more?
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9 sides