关于直角三角形全等的判定定理,过去有些课本列为五条,就是:两个直角三角形若具有下列条件之一者,它们必是全等的:(1) 两条直角边对应相等;(2) 一条直角边及其相邻锐角对应相等;(3) 一条直角边及其相对锐角对应相等;(4) 斜边及一锐角对应相等;(5) 斜边及一直角边对应相等。 For the judgment theorem of right triangle congruent, in the past some textbooks are listed as five, that is, two right triangle must be congruent if one of the following conditions holds: (1) the two right angle edges are equal; (2) A right-angle edge and its adjacent acute angle corresponding to the same; (3) a right-angle edge and its corresponding acute angle corresponding to the same; (4) hypotenuse and an acute angle corresponding to the same;