画出以A(0,0),B(5,0),C(6,4),D(1,4),为顶点的四边形ABCD,并求其面积.用平面直角坐标系来画.这个图可能小了点,请适当延长!
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![画出以A(0,0),B(5,0),C(6,4),D(1,4),为顶点的四边形ABCD,并求其面积.用平面直角坐标系来画.这个图可能小了点,请适当延长!](/uploads/image/z/5336810-26-0.jpg?t=%E7%94%BB%E5%87%BA%E4%BB%A5A%280%2C0%29%2CB%285%2C0%29%2CC%286%2C4%29%2CD%281%2C4%29%2C%E4%B8%BA%E9%A1%B6%E7%82%B9%E7%9A%84%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%2C%E5%B9%B6%E6%B1%82%E5%85%B6%E9%9D%A2%E7%A7%AF.%E7%94%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E6%9D%A5%E7%94%BB.%E8%BF%99%E4%B8%AA%E5%9B%BE%E5%8F%AF%E8%83%BD%E5%B0%8F%E4%BA%86%E7%82%B9%2C%E8%AF%B7%E9%80%82%E5%BD%93%E5%BB%B6%E9%95%BF%21)
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