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Answer:
Given: Polygon is undecagon.
To Find: Find the sum of the interior angles.
Solution: We know that, Undecagon is a polygon with 11 sides. Sum of Interior angles of a polygon=(2n-4)×90° So, Sum of Interior angles of an undecagon = (2×11-4)×90° = (22-4)×90° = 18×90.
Step-by-step explanation:
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