A regular octagon has all 8 sides the same length and all 8 angles the same size. The result is a perfectly balanced, symmetrical shape.
In a regular octagon, all 8 sides are equal and all 8 interior angles measure 135°. This symmetry makes it one of the most common polygons in architecture, design, and signage.
There are also Irregular Octagons, which have sides and angles of different sizes.
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