The sum of the interior angles of a polygon is 1620°. How many sides does the polygon have?
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Answer:
- 11 is sides of polygon
Given :
- The sum of the interior angles of a polygon is 1620⁰
To find :
- Sides
Solution :
we know that, Sum of interior angles of n - sided polygon is
- (n - 2) × 180
where , n is number of sides
Given , The sum of the interior angles of a polygon is 1620⁰ then,
》(n - 2) 180 = 1620
》(n - 2) = 1620/180
》n - 2 = 9
》n = 9 + 2
》n = 11
Hence , 11 is sides of polygon
Verification:
As we know that
- (n - 2) × 180
Where , n is 11
》(11 - 2) × 180
》9 × 180
》1620
Hence verified
More Explanation :
- Polygon is 2D shape
- Polygon are two types : Regular polygon and irregular polygon
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