Os 3. (a) (i) Find the sum of interior angles of a regular hexagon.
(ii) Hence, find the size of each interior angle of a regular hexagon.
(b) (i) Find the sum of interior angles of a regular polygon with 18 sides.
(ii) Hence, find the size of each interior angle of a regular polgon with 18 sides
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Sum of interior angles = (6-2)x180 = 720
Interior angle = 720/6 = 120
Sum of interior angle = (18-2)x180 = 16x180 = 2880
Interior angle = 2880/18 = 160
Interior angle = 720/6 = 120
Sum of interior angle = (18-2)x180 = 16x180 = 2880
Interior angle = 2880/18 = 160
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