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.
The theorem of the three sides of a right triangle is treated in detail in classical Chinese mathematics.
Standard modern term for 'right triangle'; 勾股弦 is an archaic collective term for its three sides.
Common Japanese name for the Pythagorean theorem; 勾股弦 relates to the same geometric concept but refers to the sides themselves.
Pythagorean theorem
Rare kanji spelling for the three sides of a right triangle; 勾 is the shorter leg, 股 the longer leg, and 弦 the hypotenuse.
Variant spelling using 鈎 for the shorter leg; equally rare.
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.