Nonagon area = 11

Enter nonagon info:

The of an nonagon is

The area of a nonagon is 11
Calculate side, perimeter

Calculate side:

A = 9/4s2cot(180°/9)
 s2  = 4A 9cot(180°/9)

 s2  = 4 x 11 9cot(20)

 s2  = 44 9 x 2.7474774228644

 s2  = 44 24.7273

s2 = 1.779410031982
s = √1.779410031982
s = 1.3339452882266

Calculate Perimeter:

P = 9 x side
P = 9 x 1.3339452882266
P = 12.00550759404

Calculate Sum of the Interior Angles:

Interior Angle Sum = (sides - 2) x 180°
Interior Angle Sum = (9 - 2) x 180°
Interior Angle Sum = 7 x 180°
Interior Angle sum = 1260°

Calculate polygon diagonals

 Diagonals  = n(n - 3) 2

 Diagonals  = 9(9 - 3) 2

 Diagonals  = 9(6) 2

 Diagonals  = 54 2

Diagonals = 27

Calculate 1 vertex diagonals:

1 vertex Diagonals = n - 3
1 vertex Diagonals = 9 - 3
1 vertex Diagonals = 6

Calculate triangles from one vertex:

Triangles = N - 2
Triangles = 9 - 2
Triangles = 7

Other Properties:

Sides (Edges) = 9
Faces = 1
Vertices = 9

A = 11
s = 1.3339452882266
P = 12.00550759404
Interior Angle sum = 1260°
Diagonals = 27
1 vertex Diagonals = 6
Triangles = 7
Sides (Edges) = 9
Faces = 1
Vertices = 9

How does the Nonagon Calculator work?

Free Nonagon Calculator - Calculates the side, perimeter, and area of a nonagon
This calculator has 1 input.

What 1 formula is used for the Nonagon Calculator?

P = 9s

For more math formulas, check out our Formula Dossier

What 5 concepts are covered in the Nonagon Calculator?

area
Number of square units covering the shape
nonagon
9 sided polygon or 9-gon
perimeter
The distance around a shape or object
polygon
A plane figure bounded by a set of straight lines
side
line segment joining two vertices in a polygon also known as an edge