4.如图,分别延长△ABC的三边AB,BC,CA至A′,B′,C′,使得AA′=4AB,BB′=4BC,CC′=4AC.若S△ABC=1,则S△A′B′C′等于( )
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![4.如图,分别延长△ABC的三边AB,BC,CA至A′,B′,C′,使得AA′=4AB,BB′=4BC,CC′=4AC.若S△ABC=1,则S△A′B′C′等于( )](/uploads/image/z/1562355-27-5.jpg?t=4%EF%BC%8E%E5%A6%82%E5%9B%BE%2C%E5%88%86%E5%88%AB%E5%BB%B6%E9%95%BF%E2%96%B3ABC%E7%9A%84%E4%B8%89%E8%BE%B9AB%2CBC%2CCA%E8%87%B3A%E2%80%B2%2CB%E2%80%B2%2CC%E2%80%B2%2C%E4%BD%BF%E5%BE%97AA%E2%80%B2%3D4AB%2CBB%E2%80%B2%3D4BC%2CCC%E2%80%B2%3D4AC%EF%BC%8E%E8%8B%A5S%E2%96%B3ABC%3D1%2C%E5%88%99S%E2%96%B3A%E2%80%B2B%E2%80%B2C%E2%80%B2%E7%AD%89%E4%BA%8E%EF%BC%88%E3%80%80%E3%80%80%EF%BC%89)
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