noun
three sides of a right triangle
Rare mathematical term referring collectively to the shorter leg (勾), longer leg (股), and hypotenuse (弦) of a right triangle. Mainly encountered in classical Chinese mathematics or historical Japanese texts.
勾股弦の定理は、中国の古典数学で詳しく扱われている。
The theorem of the three sides of a right triangle is treated in detail in classical Chinese mathematics.
From classical Chinese mathematical terminology; 勾 (shorter leg), 股 (longer leg), and 弦 (hypotenuse) together denote the three sides of a right triangle. The reading is on'yomi.