It is the sum of the lengths of the nine sides of the nonagon.
It is the sum of the lengths of the nine sides of the nonagon.
90
You add together the lengths of the nine sides of the nonagon.
nonagon
A regular nonagon has 9 sides and so its perimeter is 9*40 = 36 units of measurement
The answer depends on what information you have. If you have the length of a side, then the perimeter is nine times that length.
Add the length of all nine sides up.
189 feet.
40
It is: 162/9 = 18cm
The regular nonagon will have 9 isosceles triangles each with 2 equal sides of 58.476088 and an apex angle of 40 degrees. Area: 0.5*58.476088^2 *sin(40)*9 = 9891 square cm rounded to the nearest whole number