如图所示,在等腰三角形中,AB=AC(1)用尺规作出AB的垂直平分线,交AC于D,交AB于E(要保留作图痕迹) (2)连接BD,若AB=AC=10CM,三角形BDC的周长为17CM,请计算BC的长 二,如图,在三角形ABC中,AB=AC,点D
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![如图所示,在等腰三角形中,AB=AC(1)用尺规作出AB的垂直平分线,交AC于D,交AB于E(要保留作图痕迹) (2)连接BD,若AB=AC=10CM,三角形BDC的周长为17CM,请计算BC的长 二,如图,在三角形ABC中,AB=AC,点D](/uploads/image/z/1980887-23-7.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%AD%2CAB%3DAC%EF%BC%881%EF%BC%89%E7%94%A8%E5%B0%BA%E8%A7%84%E4%BD%9C%E5%87%BAAB%E7%9A%84%E5%9E%82%E7%9B%B4%E5%B9%B3%E5%88%86%E7%BA%BF%2C%E4%BA%A4AC%E4%BA%8ED%2C%E4%BA%A4AB%E4%BA%8EE%EF%BC%88%E8%A6%81%E4%BF%9D%E7%95%99%E4%BD%9C%E5%9B%BE%E7%97%95%E8%BF%B9%EF%BC%89++%EF%BC%882%EF%BC%89%E8%BF%9E%E6%8E%A5BD%2C%E8%8B%A5AB%3DAC%3D10CM%2C%E4%B8%89%E8%A7%92%E5%BD%A2BDC%E7%9A%84%E5%91%A8%E9%95%BF%E4%B8%BA17CM%2C%E8%AF%B7%E8%AE%A1%E7%AE%97BC%E7%9A%84%E9%95%BF+++%E4%BA%8C%2C%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2CAB%3DAC%2C%E7%82%B9D)
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