Octagon perimeter = 1

The perimeter of an octagon is 1

Calculate side, area

Calculate side:

s =	P
	8

s =	1
	8

s = 0.125

Calculate Area:

A = 2(1+√2)side²

A = 2(2.4142135623731)0.125²

A = 4.8284271247462(0.015625)

A = 0.075444173824159

Calculate Sum of the Interior Angles:

Interior Angle Sum = (sides - 2) x 180°

Interior Angle Sum = (8 - 2) x 180°

Interior Angle Sum = 6 x 180°

Interior Angle sum = 1080°

Calculate polygon diagonals

Diagonals =	n(n - 3)
	2

Diagonals =	8(8 - 3)
	2

Diagonals =	8(5)
	2

Diagonals =	40
	2

Diagonals = 20

Calculate 1 vertex diagonals:

1 vertex Diagonals = n - 3

1 vertex Diagonals = 8 - 3

1 vertex Diagonals = 5

Calculate triangles from one vertex:

Triangles = N - 2

Triangles = 8 - 2

Triangles = 6

Other Properties:

Sides (Edges) = 8

Faces = 1

Vertices = 8

Final Answers

P = 1
s = 0.125
A = 0.075444173824159
Interior Angle sum = 1080°
Diagonals = 20
1 vertex Diagonals = 5
Triangles = 6
Sides (Edges) = 8
Faces = 1
Vertices = 8

What is the Answer?

P = 1
s = 0.125
A = 0.075444173824159
Interior Angle sum = 1080°
Diagonals = 20
1 vertex Diagonals = 5
Triangles = 6
Sides (Edges) = 8
Faces = 1
Vertices = 8

How does the Octagon Calculator work?

Free Octagon Calculator - Calculate side, area, and perimeter of an octagon based on inputs
This calculator has 1 input.

What 1 formula is used for the Octagon Calculator?

P = 8*s

What 5 concepts are covered in the Octagon Calculator?

area: Number of square units covering the shape
octagon: An eight (8) sided polygon
P = 8s
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