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正多角形 (せいたかくけい, seitakakukei) Japanese meaning | Kotomora

正せい多た角かく形けい

せ

い

た

か

く

け

い

Meanings

1

regular polygon

A polygon with all sides and angles equal. Used in geometry and mathematics.

正せい多た角かく形けいの内ない角かくの和わを求もとめる公

こう

式しき

を

覚おぼ

え

て

い

ます

か

。

Do you remember the formula for finding the sum of the interior angles of a regular polygon?

Kanji

正correct, justice, righteous
多many, frequent, much
角angle, corner, square
形shape, form, style

Related words

多た角かく形けい
多角形 is a general polygon, while 正多角形 specifically means a regular polygon with equal sides and angles.

Word family

星ほし型がた正せい多た角かく形けい
regular star polygon; stellated regular polygon

Built from

正せい+多た角かく形けい

Etymology

Compound of 正 (regular, correct) and 多角形 (polygon). The term is a direct calque from Western mathematical terminology.