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Find the sum of the angles of the polygon with the given sides? 

(a) 12 

(b) 15 

(c) 20 

(d) 24

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(a) Sum of angles = (12 – 2 ) × 180 1800°

(b) Sum of angles = (15 – 2) × 180 = 2340°

(c) Sum of angles = (20 – 2) × 180 = 3240°

(d) Sum of angles = (24 – 2) × 180 = 3960°

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