Heptagon Formulas

1. Area of Regular Heptagon Formula

Area = 7 \times \frac{s ² \times \cot (\frac{π}{7})}{4}

Area is calculated using side length (s) and cotangent of π/7.

Perimeter = 7 \times s

Perimeter is 7 times the side length (s).

a = \frac{s \times \cot (\frac{π}{7})}{2}

Apothem is calculated using side length (s) and cotangent of π/7.

θ = \frac{180 \times 5}{7}

Each interior angle is approximately 128.57°.

Exterior Angle = \frac{360}{7}

Each exterior angle is approximately 51.43°.