theorem
🇺🇸
/ˈθiːərəm/
🇬🇧
/ˈθɪərəm/
a statement that is proven to be true based on a set of accepted statements or previous theorems
The Pythagorean theorem is a fundamental principle in geometry, stating that the square of the hypotenuse is equal to the sum of the squares of the other two sides.
勾股定理是幾何學中的一個基本原則,它指出直角三角形的斜邊的平方等於另外兩條邊的平方和。