Translation guide
The Pythagorean theorem is a mathematical concept. In Japanese, it is most commonly referred to as 三平方の定理, but ピタゴラスの定理 is also widely understood.
Referring to the geometric theorem that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.
This is the standard term used in Japanese mathematics education. It literally means 'theorem of three squares'.
三平方の定理を使って、直角三角形の斜辺の長さを求めます。
Using the Pythagorean theorem, we find the length of the hypotenuse of a right triangle.
This is the direct transliteration of 'Pythagorean theorem' and is also commonly used, especially in more academic or international contexts.
ピタゴラスの定理は、古代ギリシャの数学者ピタゴラスによって発見されました。
The Pythagorean theorem was discovered by the ancient Greek mathematician Pythagoras.