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An Octagon has 8 sides. The other more popular shapes are Hexagon which has 6 sides, a Pentagon which has 5 sides, a Square which has 4 sides and a Triangle which has 3 sides.
An octagon.
They are both shapes and an octagon can be made up of six or more triangles. Other than that they are not similar. A triangle must have three sides. An octagon must have eight sides.
A hexagon has 6 sides. An octagon has 8 sides. Therefore an octagon has two sides more than a hexagon.
an octagon is a polygon. an octagon has 8 sides. a polygon is a shape with closed sides.