如图,已知△ABC是一等腰三角形铁板余料,其中AB=AC=2cm,BC=24cm.如图,已知△ABC是一等腰三角形铁板余料,其中AB=AC=20cm,BC=24cm.若在△ABC上截出一矩形零件DEFG,使EF在BC上,点D、G分别在边AB、AC上.(1
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![如图,已知△ABC是一等腰三角形铁板余料,其中AB=AC=2cm,BC=24cm.如图,已知△ABC是一等腰三角形铁板余料,其中AB=AC=20cm,BC=24cm.若在△ABC上截出一矩形零件DEFG,使EF在BC上,点D、G分别在边AB、AC上.(1](/uploads/image/z/2190859-43-9.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E2%96%B3ABC%E6%98%AF%E4%B8%80%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2%E9%93%81%E6%9D%BF%E4%BD%99%E6%96%99%2C%E5%85%B6%E4%B8%ADAB%3DAC%3D2cm%2CBC%3D24cm.%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5%E2%96%B3ABC%E6%98%AF%E4%B8%80%E7%AD%89%E8%85%B0%E4%B8%89%E8%A7%92%E5%BD%A2%E9%93%81%E6%9D%BF%E4%BD%99%E6%96%99%2C%E5%85%B6%E4%B8%ADAB%3DAC%3D20cm%2CBC%3D24cm%EF%BC%8E%E8%8B%A5%E5%9C%A8%E2%96%B3ABC%E4%B8%8A%E6%88%AA%E5%87%BA%E4%B8%80%E7%9F%A9%E5%BD%A2%E9%9B%B6%E4%BB%B6DEFG%2C%E4%BD%BFEF%E5%9C%A8BC%E4%B8%8A%2C%E7%82%B9D%E3%80%81G%E5%88%86%E5%88%AB%E5%9C%A8%E8%BE%B9AB%E3%80%81AC%E4%B8%8A%EF%BC%8E%EF%BC%881)
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