在平面直角坐标系中,\(\triangle ABC\)的三个顶点坐标分别为\(A(2,-4)\),\(B(3,-2)\),\(C(6,-3)\).
\((1)\)画出\(\triangle ABC\)关于\(x\)轴对称的\(\triangle A_{1}B_{1}C_{1}\);
\((2)\)以\(M\)点为位似中心,在网格中画出\(\triangle A_{1}B_{1}C_{1}\)的位似图形\(\triangle A_{2}B_{2}C_{2}\),使\(\triangle A_{2}B_{2}C_{2}\)与\(\triangle A_{1}B_{1}C_{1}\)的相似比为\(2\):\(1\);
\((3)\)若每一个方格的面积为\(1\),则\(\triangle A_{2}B_{2}C_{2}\)的面积为 ______ .