![](http://hiphotos.baidu.com/zhidao/pic/item/902397dda144ad34677b9e35d3a20cf430ad85bf.jpg)
∵A(-3,0),B(3,0),
∴AB=3-(-3)=6,
①如圖1,點(diǎn)D在y軸坐標(biāo)軸時(shí),過(guò)點(diǎn)C作CE⊥x軸,
S四邊形ABDC=
1 |
2 |
1 |
2 |
1 |
2 |
解得h=
24 |
5 |
此時(shí)點(diǎn)D的坐標(biāo)為(0,
24 |
5 |
②如圖2,點(diǎn)D在y軸負(fù)半軸上時(shí),
S四邊形ACBD=S△ABC+S△ABD=
1 |
2 |
1 |
2 |
解得h=3,
此時(shí),點(diǎn)D的坐標(biāo)為(0,-3),
綜上所述,點(diǎn)D的坐標(biāo)為(0,
24 |
5 |