已知Rt△ABC中,AC=3,BC= 4,过直角顶点C作CA1⊥AB,垂足为A...

已知Rt△ABC中,AC=3,BC= 4,过直角顶点C作CA1⊥AB,垂足为A... 已知Rt△ABC中,AC=3,BC=4,过直角顶点C作CA1⊥AB,垂足为A1, 如图．已知Rt△ABC中，AC=3，BC=4，过直角顶点C作CA1⊥AB，垂足为A1，再过A1作A1C1⊥BC，垂足为C 如图，已知Rt△ABC中，AC=3，BC=4，过直角顶点C作CA1⊥AB，垂足为A1，再过A1作A1C1⊥BC，垂足为C 如图,已知Rt△ABC中,AC=3,BC=4,过直角顶点C作CA1⊥AB,垂足为A1,再过A1作A1C1⊥BC,垂足为C 已知Rt△ABC中,AC=3,BC= 4,过直角顶点C作CA1⊥AB,垂足为A1,再过A1作A1C1⊥BC 初二相似图形应用题如图,已知RT△ABC,AC=3,BC=4,通过直角顶点C作CA1⊥AB,垂足为A1；再过A1作A1C 已知,在RT三角形ABC中,∠ACB=90＇AC =6,BC=8过直角顶点C做CA1⊥AB垂足为A 如图，已知直角三角形ACB，AC=3，BC=4，过直角顶点C作CA1⊥AB，垂足为A1，再过A1作A1C1⊥BC，垂足为 如图,已知直角三角形ABC中,∠ACB=90°,AC=3,BC=4,过直角顶点C作CA1⊥ABm,垂足为A1, 一道代数题.如图,已知直角三角形ACB,AC=3,BC=4,过直角顶点C作CA1⊥AB,垂足为A1,再过A1作A1C1⊥ Rt△ABC的直角顶点B在直线PQ上,且AB=BC,过A.C分别作PQ的垂线AD.CE,垂足为D.E求证：DE=AD+C