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It is a 9 sided nonagon and its 9 interior angles add up to 1260 degrees

Q: What is the sum of the polygons interior angle measure if one exterior angle measure 40 degrees?

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It is: 180-exterior angle = interior angle

The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.

They are all 60 degrees.

Each exterior angle: 72 degrees Each interior angle: 108 degrees

It is: 180-exterior angle = interior angle because there are 180 degrees on a straight line

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It is: 180-exterior angle = interior angle

The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.The sum is always 360 degrees. Note, though, that when the interior angle is convex, the measure of the exterior angle is negative.

As for all polygons the exterior angles add up to 360 degrees

They are all 60 degrees.

Exterior angle+interior angle=180 degrees and 180-exterior angle=interior angle

360 degrees interior and exterior

Each exterior angle: 40 degrees Each interior angle: 140 degrees

Each exterior angle: 72 degrees Each interior angle: 108 degrees

It is: 180-exterior angle = interior angle because there are 180 degrees on a straight line

It is: 160 degrees

Each interior angle is 140 degrees. Each exterior angle is 220 degrees.

Exterior: 45 degrees Interior: 135 degrees