Hendecagon

A hendecagon is a polygon with 11 sides and 11 vertices.

Regular Hendecagon

A regular hendecagon is a polygon with 11 equal sides and angles.

Angles of the Hendecagon

The sum of interior angles of a hendecagon = (11 − 2) · 180° = 1,620°

The value of an interior angle of a regular hendecagon is: 1,620º : 11 = 147.27º

The central angle of a regular hendecagon measures: 360º : 11 = 32.73º

Diagonals of the Hendecagon

The number of diagonals in a regular hendecagon = 11 · (11 − 3) : 2 = 44

Perimeter of a Regular Hendecagon

Perimeter = 11 · l

Area of a Regular Hendecagon

Area of a Regular Pentagon Formula






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