1.如图,在△ABC和△DEF中AB=3DE,AC=3DF,∠A=∠D,△ABC的周长是24cm,面积是24cm²,求△DEF的周长和面积2.如下图,甲乙两盏路灯相距20米,一天晚上,当小刚从甲走到距路灯乙的底部4米处,发现自己的身影
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![1.如图,在△ABC和△DEF中AB=3DE,AC=3DF,∠A=∠D,△ABC的周长是24cm,面积是24cm²,求△DEF的周长和面积2.如下图,甲乙两盏路灯相距20米,一天晚上,当小刚从甲走到距路灯乙的底部4米处,发现自己的身影](/uploads/image/z/4538035-19-5.jpg?t=1.%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E2%96%B3ABC%E5%92%8C%E2%96%B3DEF%E4%B8%ADAB%3D3DE%2CAC%3D3DF%2C%E2%88%A0A%3D%E2%88%A0D%2C%E2%96%B3ABC%E7%9A%84%E5%91%A8%E9%95%BF%E6%98%AF24cm%2C%E9%9D%A2%E7%A7%AF%E6%98%AF24cm%26%23178%3B%2C%E6%B1%82%E2%96%B3DEF%E7%9A%84%E5%91%A8%E9%95%BF%E5%92%8C%E9%9D%A2%E7%A7%AF2.%E5%A6%82%E4%B8%8B%E5%9B%BE%2C%E7%94%B2%E4%B9%99%E4%B8%A4%E7%9B%8F%E8%B7%AF%E7%81%AF%E7%9B%B8%E8%B7%9D20%E7%B1%B3%2C%E4%B8%80%E5%A4%A9%E6%99%9A%E4%B8%8A%2C%E5%BD%93%E5%B0%8F%E5%88%9A%E4%BB%8E%E7%94%B2%E8%B5%B0%E5%88%B0%E8%B7%9D%E8%B7%AF%E7%81%AF%E4%B9%99%E7%9A%84%E5%BA%95%E9%83%A84%E7%B1%B3%E5%A4%84%2C%E5%8F%91%E7%8E%B0%E8%87%AA%E5%B7%B1%E7%9A%84%E8%BA%AB%E5%BD%B1)
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