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Step-by-step explanation:
8) each exterior angle = 180 - 45° = 135°
therefore number of sides of a regular polygon
=> 360° / exterior angle
=> 360° / 135° => 2.66. as 'n' is not a whole number, a regular polygon can not have 45° as interior angle
7) each interior angle = 30°
therefore each exterior angle = 180° - 30°
=> 150°
number of sides = 360° / 150° = 2.4
as 'n' is not a whole number, we can not
have a regular polygon with each interior angle of 30°
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