Heptagon side = 10

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Crop

The side of an heptagon = 10

Calculate perimeter, area

Calculate Perimeter:

P = 7 x side

P = 7 x 10

P = 70

Calculate Area:

A = 7/4s²cot(180°/7)

A = 7/4(10)²cot(25.714285714286)

A = 7/4(100)cot(25.714285714286)

A = 175 x 2.0765213992964

A = 363.39124487688

Calculate Sum of the Interior Angles:

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

Interior Angle Sum = (7 - 2) x 180°

Interior Angle Sum = 5 x 180°

Interior Angle sum = 900°

Calculate polygon diagonals

Diagonals = 14

Calculate 1 vertex diagonals:

1 vertex Diagonals = n - 3

1 vertex Diagonals = 7 - 3

1 vertex Diagonals = 4

Calculate triangles from one vertex:

Triangles = N - 2

Triangles = 7 - 2

Triangles = 5

Other Properties:

Sides (Edges) = 7

Faces = 1

Vertices = 7

Final Answers