Declension of the word "oktaeder"

Singular and plural for Oktaeder, m, strong declension     translation to English octahedron

Singular
Plural
Singular
Nominativ (Wer? Was?)
der Oktaeder
die Oktaeder
Genitiv (Wessen?)
des Oktaeders
der Oktaeder
Dativ (Wem?)
dem Oktaeder
den Oktaedern
Akkusativ (Wen? Was?)
den Oktaeder
die Oktaeder
Plural
die Oktaeder
der Oktaeder
den Oktaedern
die Oktaeder
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