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DorelTibi
If the measure of each exterior angle of a regular polygon is 9°, determine how many sides the polygon has.
the sum of the exterior angles of a polygon is always 360 degrees. The size of 1 exterior angle is found by 360/n where n is the number of sides. so in your question you have 9 = 360/n where n is the number of sides, just solve for n hope this helps
thats it... the polygon has 40 sides