Last Updated
：2025/11/24
nine points circle
Noun
alt-of
alternative
Japanese Meaning
三角形の各辺の中点、各頂点からの垂線の足、または三角形の外心や内心といった点との中間点など、計九つの特定の点を通る円、いわゆる「九点円」を意味する。
Sense（1）
（ plural ）
Quizzes for review
Alternative spelling of nine-point circle
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See correct answer
nine points circle
In some older geometry texts, the phrase nine points circle is found as an alternative spelling.
See correct answer
In some older geometry texts, the phrase nine points circle is found as an alternative spelling.
音声機能が動作しない場合はこちらをご確認ください
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