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Q: What would a regular polygon be called if the exterior is 120 degrees?

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8 and it is called a regular octagon

A nine sided shape that is called a regular nonagon.

5 sides and it is called a pentagon.

Obtuse

It has 9 sides and is called a nonagon

A [regular] pentagon.

A 6 sided polygon is called a Hexagon. The sum of the interior angles or a regular hexagon is 720 degrees.

AnswerIt is Dodecagon.To find this, you have to first find the exterior angle of the polygon. Since the exterior angle of a polygon is always supplementary to the interior angle, you subtract the measure of the interior angle from 180. 180-150=30. Now You divide 360 by the measure of the exterior angle to get the number of sides of the polygon. 360/30=12. A 12-sided polygon is called a dodecagon

If the interior angle measures 156 degrees, this means that the exterior angle is equal to 180 - 156 = 24 degrees. Dividing this by the full 360 degrees of a circle, gives 360/24 = 15. The polygon therefore has fifteen sides. A fifteen-sided polygon is called a pentadecagon or pentakaidecagon.

A regular polygon having an interior angle of 120 degrees will have 6 sides and is called an hexagon.

It is called an exterior angle.

A five-sided polygon is called a pentagon. A regular five-sided polygon is simply called a regular pentagon

It will have 8 sides and it is called a regular octagon.

A regular polygon

a "regular" polygon

A regular polygon.

A regular polygon.

That is called a regular polygon.

A polygon can only have sides. There are no interior or exterior sides: all sides are the boundaries of a polygon. They could be called equilateral although that names seems to be reserved for triangles.

Since the sum of the n central angles (where n is also the number of sides) of a regular polygon is 360 degrees, then our polygon has 9 sides (360/40) and it is called a nonagon.

It is called a regular polygon.

A regular polygon.

A ten-sided polygon is called a decagon. A decagon has ten internal angles of 144-degrees. All sides of a regular decagon are equal length.

It is called a regular polygon. * * * * * Actually not. All its angles must also be congruent for it to be called regular.

A sixteen-sided regular polygon is called a hexadecagon or a hexakaidecagon.