Heptagon

A heptagon is a polygon with seven sides and seven vertices.

Regular Heptagon

A regular heptagon is a polygon with seven equal sides and angles.

Angles of the Heptagon

The sum of interior angles of a heptagon = (7 − 2) · 180° = 900°

The value of an interior angle of a regular heptagon is: 900º : 7 = 128.57º

The central angle of a regular heptagon measures: 360º : 7 = 51.43º

Diagonals of the Heptagon

The number of diagonals in a regular heptagon = 7 · (7 − 3) : 2 = 14

Perimeter of a Regular Heptagon

Perimeter = 7 · l

Area of a Regular Heptagon

Area of a Regular Pentagon Formula