A polygon with 12 sides is called a:, a) Decagon, b) Dodecagon, c) Octagon, d) Nonagon, The exterior angles of a polygon are 50°, 70°, 90°, 60°, and x°. Find x., 80°, b) 90°, c) 100°, d) 110, A regular polygon has each exterior angle equal to 24°. How many sides does it have?, 12, b) 15, c) 18, d) 20, A regular polygon has 18 sides. Find each exterior angle., a) 20°, 18°, c) 24°, d) 30°, The interior angle of a regular polygon is 140°. Find its exterior angle., a) 20°, b) 30°, c) 40°, d) 50°, The exterior angle of a regular pentagon is:, a) 60°, b) 72°, c) 90°, d) 108°

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