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Q: What is sum of the exterior angle of a 120-sided regular plygon?

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The sum of the exterior angles is 360 so if each is 120 we know 360/120=3. This tells us there are 3 exterior angles. The sum of the interior angles in a triangle is 180 degrees.

Exterior angle of a regular hexagon = 60 degrees

180-interior angle = exterior angle If it's a regular polygon then: 360/number of sides = exterior angle

Each exterior angle measures 72 degrees

360/number of sides = exterior angle

The largest exterior angle measure is 120o. It is the exterior measure of an equilateral triangle (which is a regular polygon).

With a regular polygon: 360/exterior angle = number of sides

It depends on a few factors: if the angle is interior, if the angle is exterior, and if the hexagon is a regular hexagon or not. Each interior angle of a regular hexagon is 120o. Each exterior angle of a regular hexagon is 60o.

Exterior angle of a square is 90 degrees Exterior angle of a regular pentagon is 72 degrees

Interior angle 177.12 degrees Exterior angle 2.88 degrees

Each exterior angle measures 72 degrees

360/number of sides = exterior angle

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