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Q: What is the value of one angle in a regular nonagon?

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140

140 degrees

Each interior angle of a regular nonagon measures 140 degrees.

The measure of an interior angle of a regular nonagon is 140o. This is found in any polygon by multiplying 2 less than the number of sides by 180o and then dividing the product by the number of sides. A nonagon interior angle is then 7 x 180o/9 = 140o.

It's impossible to tell, unless it's a regular nonagon. All we're sure of isthat all nine of them total up to 360 degrees.If it happens to be a regular nonagon, then each one is 40 degrees.

A nine sided shape that is called a regular nonagon.

A nonagon has 9 sides. It can have one or more 90 degree angles. If it is a regular nonagon then it has 180*7/9 for the interior angle measures which is 140 degrees.

Any angle between 0 and 360 degrees. An interior angle of any polygon (other than a triangle) can have any value in that range.

If it is a regular nonagon, then you use the following formula: [(s-2) x 180]/s = angle of one interior angle. (s means the number of sides) Then solve: [(s-2) x 180]/s = [(9-2) x 180]/9 = [7 x 180]/9 = 1260/9 = 140. Then, for the exterior angle, subtract 140 from 360. The measure of the exterior angle of a regular nonagon is 220.

Yes

9

They can be but don't have to. An irregular one doesn't, but a regular one does.

360/9 = 40 degrees

If it is a regular nonagon then it has 9 equal sides, so all you needed to do was divide 31.23 by 9. (You would have got 3.47 cm)

If the interior angle = 140 degrees, then the exterior angle = 180 degrees - 140 degrees = 40 degrees. So the number of sides is 360 degrees / 40 degrees = 9 sides (a nonagon).

The area is indeterminate, since the shape can be a long thin nonagon with minimum area or a regular one with maximum area.

a nonagon

One interior angle of a regular 5 sided pentagon measures 108 degrees.

Each side is 117/9 = 13 cm

nonagon is one good word

144

150

135

Exterior angle: 45 degrees Interior angle: 135 degrees

A regular nonagon aka enneagon