把RT△ABC和RT△DEF按如甲图摆放(点C与点E重合),点B、C(E)、F在同一直线上.∠ACB=∠EDF=90°∠DEF=45°,AC=8cm,BC=6cm,EF=10cm.如图乙,△DEF从图甲的位置出发,以1cm/s的速度沿CB向△ABC匀速移动,在△DEF移
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![把RT△ABC和RT△DEF按如甲图摆放(点C与点E重合),点B、C(E)、F在同一直线上.∠ACB=∠EDF=90°∠DEF=45°,AC=8cm,BC=6cm,EF=10cm.如图乙,△DEF从图甲的位置出发,以1cm/s的速度沿CB向△ABC匀速移动,在△DEF移](/uploads/image/z/5288937-33-7.jpg?t=%E6%8A%8ART%E2%96%B3ABC%E5%92%8CRT%E2%96%B3DEF%E6%8C%89%E5%A6%82%E7%94%B2%E5%9B%BE%E6%91%86%E6%94%BE%EF%BC%88%E7%82%B9C%E4%B8%8E%E7%82%B9E%E9%87%8D%E5%90%88%EF%BC%89%2C%E7%82%B9B%E3%80%81C%EF%BC%88E%29%E3%80%81F%E5%9C%A8%E5%90%8C%E4%B8%80%E7%9B%B4%E7%BA%BF%E4%B8%8A.%E2%88%A0ACB%3D%E2%88%A0EDF%3D90%C2%B0%E2%88%A0DEF%3D45%C2%B0%2CAC%3D8cm%2CBC%3D6cm%2CEF%3D10cm.%E5%A6%82%E5%9B%BE%E4%B9%99%2C%E2%96%B3DEF%E4%BB%8E%E5%9B%BE%E7%94%B2%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%87%BA%E5%8F%91%2C%E4%BB%A51cm%2Fs%E7%9A%84%E9%80%9F%E5%BA%A6%E6%B2%BFCB%E5%90%91%E2%96%B3ABC%E5%8C%80%E9%80%9F%E7%A7%BB%E5%8A%A8%2C%E5%9C%A8%E2%96%B3DEF%E7%A7%BB)
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