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Sonic Geometry: Difference between revisions
→Octagon 1080 Degrees
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==Octagon 1080 Degrees== | ==Octagon 1080 Degrees== | ||
[[File:Regular polygon 8 annotated.svg|thumb|Regular octagon with annotation.]] | [[File:Regular polygon 8 annotated.svg|thumb|Regular octagon with annotation.]] | ||
In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon.The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°. | In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon.The sum of all the internal angles of any octagon is 1080°. As with all polygons, the external angles total 360°. | ||