ピタゴラスの定理は、直角三角形では、陽電子の長さの正方形（直角の反対側）が他の両側の長さの長さの正方形の合計に等しいと述べる数学的式です。定理は数学的に表現されます：

c^2 = a^2 + b^2、

ここで、cはhypotenuseの長さであり、aとbは他の2つの辺の長さです。

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ちなんで名付けられました。定理には、エンジニアリング、アーキテクチャ、ナビゲーションなどの分野で多くの実用的な用途があり、ユークリッド幾何学の基本的な定理です。
The Pythagorean Theorem is a mathematical formula that states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. The theorem is expressed mathematically as:

c^2 = a^2 + b^2,

where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

The Pythagorean Theorem is named after the ancient Greek mathematician Pythagoras, who is credited with its discovery, although it is likely to have been known by the Indians as well. The theorem has many practical applications in fields such as engineering, architecture, and navigation, and it is a fundamental theorem in Euclidean geometry.