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CBSE Class 8 Answered

1) Number of sides of regular polygon with an interior angle 150 is _______ 2)  Interior angle of a regular polygon with 20 sides is ____
Asked by biswajitpatel88 | 10 May, 2024, 10:49: AM
answered-by-expert Expert Answer

1)

The sum of the interior angles of a regular polygon with 'n' sides is always (n-2) × 180°

(n-2) × 180 = (n) × 150

hence, no. of sides = 12

 

2)

Now,

(n-2) × 180 = (n) × interior angle

(20-2) × 180 = (20) × interior angle

Interior angle = 162°

 

 

Answered by Arun | 10 May, 2024, 12:48: PM
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