SOLUTION: A polygon has n sides. Three of its interior angles are 50 degrees, 60 degrees and 70 degrees. The remaining(n-3) exterior angles are each 15 degrees. Calculate the value of n.

Question 979370: A polygon has n sides. Three of its interior angles are 50 degrees, 60 degrees and 70 degrees. The remaining(n-3) exterior angles are each 15 degrees. Calculate the value of n.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A polygon has n sides. Three of its interior angles are 50 degrees, 60 degrees and 70 degrees. The remaining(n-3) exterior angles are each 15 degrees. Calculate the value of n.
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Three of its interior angles are 50 degrees, 60 degrees and 70 degrees --> sum = 180 degrees
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--> a triangle, 3 sides
--> n = 3
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