短語詞組短語right -angled triangle plate 直角三角形板isosceles right -angled triangle capillary 等腰直角三角形毛細管the isosceles right -angled triangle plate 等腰直角三角形板altitude of a right -angled triangle 直角三角形的高right angled triangle WESTBANK 直角三角 返回 right angled triangle