In
geometry, an octagram is an eight-angled
star polygon
In geometry, a star polygon is a type of non-convex polygon. Regular star polygons have been studied in depth; while star polygons in general appear not to have been formally defined, certain notable ones can arise through truncation operations ...
.
The name ''octagram'' combine a Greek
numeral prefix, ''
octa-'', with the
Greek suffix ''
-gram
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