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Question

The sum of interior angles of a polygon is 1620° What type of polygon is this?


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Solution

Sum of interior angles =(n2)×180o
where n is the total number of sides.

1620o=(n2)×180o
n2=1620o180o=9
n=9+2=11

The polygon has 11 sides.
11 sided polygon is called hendecagon.

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