斜しゃ方ほう形けい

noun

rhombus; diamond shape

Geometric term for a quadrilateral with equal sides but not necessarily right angles. Often used in mathematics; in everyday contexts, 菱形 (ひしがた) is more common.

See also: 菱形

• 斜しゃ方ほう形けいの面めん積せき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 area of a rhombus?