oc·ta·gon
noun/ˈɒktəɡən/
/ˈɑːktəɡɑːn/
(geometry)- a flat shape with eight straight sides and eight angles

enlarge image Topics Colours and Shapesc2八边形;八角形 Word Originlate 16th cent.: via Latin from Greek octagōnos ‘eight-angled’.
| 单词 | octagon |
| 释义 | oc·ta·gonnoun/ˈɒktəɡən/ /ˈɑːktəɡɑːn/ (geometry)
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