Polygons Calculator

Enter one of the following combos: (s and n),(r and n),(a and n),(a and s and n)
Side LengthNumber of SidesRadiusApothemPerimeter

Calculate Sum of the Interior Angles:
Interior Angle Sum = (n - 2) x 180°
Interior Angle Sum = (10 - 2) x 180°
Interior Angle Sum = (8) x 180°
Interior Angle sum = 1440°

Calculate the number of diagonals of the polygon:
Diagonals =n(n - 3)
2

Diagonals =10(10 - 3)
2

Diagonals =10(7)
2

Diagonals =70
2

Diagonals = 35

Calculate the number of diagonals from one vertex:
1 vertex Diagonals = n - 3
1 vertex Diagonals = 10 - 3
1 vertex Diagonals = 7

Calculate the number of triangles that can be drawn from one vertex:
Triangles = N - 2
Triangles = 10 - 2
Triangles = 8

Construct the formal name of this polygon:
Since the polygon has 10 sides, it is a decagon