设点F的坐标是(x,y). ∵A(1,2),B(3,2),C(4,3),D(2,6),E(3,5), ∴AB=2,BC=,AC=,DE=; ①当△FDE≌△ABC时,FE=AC=,DF=BA=2,则
| (x-2)2+(y-6)2=4 | (x-3)2+(y-5)2=10 |
| | , 解得,或; ∴F1(2,8),F2(0,6); ②当△FED≌△ABC时,FE=AB=2,FD=AC=,则
| (x-3)2+(y-5)2=4 | (x-2)2+(y-6)2=10 |
| | , 解得,或, ∴F3(5,5),F4(3,3); 综上所述,点F的坐标是:F1(2,8),F2(0,6),F3(5,5),F4(3,3). 故答案是:F1(2,8),F2(0,6),F3(5,5),F4(3,3).
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