如图已知△ABC中,AB=AC=10cm.∠B=∠C,BC=8cm,点D为AB的中点。如果点P在线段BC上以3厘米/秒的 速度由B
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发布时间：2022-05-23 14:13
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时间：2023-10-24 11:32
1秒钟。由角B＝C角知，要么BD＝CP，要么BD＝CQ。当BD=CP=5时，BP=CQ=3,三角形全等成立；当BD=CQ=5时,BP=CQ=5,CP=3,CP不等于BP,全等不成立。故仅有BP=3,t=1秒
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时间：2023-10-24 11:32
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