apothem
名词 n.
发音 ăpə-thĕm′
英文释义
名词 n.
- The perpendicular distance from the center of a circle to a chord of the same circle.
- The distance from the center of a regular polygon perpendicular to one of its sides (a special case of the above).
词形变化
词源
From Ancient Greek ἀπόθεμα (apóthema, “deposit”), from ἀπό (apó, “off, away”) + θέμα (théma, “that which is laid down”).
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数据来源: Wiktionary