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)
The answer depends on what information you have. If you have the length of a side, then the perimeter is nine times that length.
Each side is 117/9 = 13 cm
A regular nonagon with a side length of 9 has an apothem of 12.4 not 16. So the question is inconsistent.
It is a nonagon in which all the sides have the same length. This should not be confused with a regular nonagon which also requires all angles to be the same.
The perimeter of a regular hexagon with a side length of 6.8mm is 40.8mm
The answer depends on what information you have. If you have the length of a side, then the perimeter is nine times that length.
It is: 162/9 = 18cm
Each side is 117/9 = 13 cm
Area of a regular polygon = 1/2(apothem)(perimeter) 2025 = 1/2(25)(perimeter), so the perimeter = 2025 divided by 25/2. Perimeter = 162 Side length = 162/9 Side length = 18
I think you mean a regular nonagon. This is a nine-sided polygon. If you have the length of one side, you can multiply it by 9 to find the perimeter of all sides.
One possibility is an irregular triangle with a side of 5 units.
For any nonagon in general:Perimeter = (side-1 + side-2 + side-3 + . . . . . + side-8 + side-9)For a regular nonagon:Perimeter = 9 x (length of one side)
Add the length of all nine sides up.
A regular nonagon with a side length of 9 has an apothem of 12.4 not 16. So the question is inconsistent.
It is a nonagon in which all the sides have the same length. This should not be confused with a regular nonagon which also requires all angles to be the same.
The perimeter of a regular hexagon with a side length of 6.8mm is 40.8mm
If the side length is 7, the perimeter is 35.