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Octagon Inscribed in a Circle

To draw a regular octagon with a compass and ruler, gather your materials first: a large sheet of paper, a compass, a ruler, and a pencil. An eraser is also helpful.

Instructions

The animation below shows how to draw a regular octagon inscribed inside a circle.

Octagon construction animation

Thanks to Aldoaldoz for creating this image. By Aldoaldoz [CC BY-SA 3.0 or GFDL], via Wikimedia Commons.

More About the Octagon

Click on any element to learn more.

Fórmula del Área del Octágono

Octagon Area
Formula
Fórmula del Perímetro del Octágono

Octagon Perimeter
Formula
Ángulos del Octágono

Interior and
Exterior Angles
Construcción del Octágono con Compás y Regla

Compass-and-Ruler
Construction
Octágono Regular

Regular
Octagon
Octágono Irregular

Irregular
Octagon
Apotema del Octágono

Apothem
Diagonales del Octágono

Diagonals
and Formula
Calculadora del Área del Octágono

Octagon Area
Calculator
Calculadora del Perímetro del Octágono

Octagon Perimeter
Calculator
El Octágono en la Arquitectura

Octagons in
Architecture

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