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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.

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Q: What is the sum of the measures of the interior angle of a regular plygon if each exerior angle measures 120?
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Related questions

What is the sum of the measures of the interior angle of a regular plygon if each exerior angle measures 120 degrees?

It will have 3 interior angles of 60 degrees that add up to 180 degrees and it is an equilateral triangle.


Is a square a plygon?

Yes a square is a regular 4 sided polygon


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

360 degrees


What is the sum of the interior angles of a plygon with 36 sides?

The interior angles of a 36 sided polygon add up tp 6120 degrees


What is the angles of a regular plygon?

"poly" just means "many". How many sides? Interior angles of any n-sided polygon total 180n - 360 degrees, usually expressed as "2n -4 right angles"


What is a plygon?

octagon


What is a 10 side plygon named?

A decagon


How many triangles are in a 24 sided plygon?

There are 22


Is a plygon with three angles?

A triangle has three angles.


What is a plygon with 6 sides called?

A polygon with 6 sides is an hexagon


What is a plane figure but not a plygon?

any ellipse, any pie-wedge of a circle, etc.


What is a four sided plygon?

A four sided polygon can be a square, a parallelogram, a rectangle, a rhombus or a kite.