题目如图,已知A(0,4)A\left(0,4\right)A(0,4),B(−2,2)B\left(-2,2\right)B(−2,2),C(3,0)C\left(3,0\right)C(3,0).(1)(1)(1)作△ABC\triangle ABC△ABC关于xxx轴对称的△A1B1C1\triangle A_{1}B_{1}C_{1}△A1B1C1；(2)(2)(2)写出点的坐标:A1A_{1}A1______,B1B_{1}B1______,C1C_{1}C1______；(3)△A1B1C1(3)\triangle A_{1}B_{1}C_{1}(3)△A1B1C1的面积S△A1B1C1=______.{S}_{△{A}_{1}{B}_{1}{C}_{1}}=\_\_\_\_\_\_.S△A1B1C1=______.知识点：作图——轴对称变换章节：未标注
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