直ちょっ角かく三さん角かく形けいMeaningsNoun1. right triangle; right-angled triangleOther readings直ちょっ角かく三さん角かっ形けいKanji used直straight角angle三three形shapeComposed of直ちょっ角かくright angleNoun三さん角かく形けいtriangleNoun