ピタゴラスの定てい理りピタゴラスのていりMeanings1nounPythagorean theoremMathematical term for the theorem that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides.ピタゴラスの定てい理りは直ちょっ角かく三さん角かく形けいに適てき用よう
