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[几何] 求三角形重心的轨迹方程

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lemondian posted 2021-11-14 23:38 |Read mode
(1)已知三角形ABC的三边AB=c,BC=a,CA=b,顶点A在x轴的正半轴上滑动,顶点B在y轴的正半轴上滑动,求三角形ABC的重心G的轨迹方程。
(2)如图,等边三角形ABC的边长为m,顶点A在OQ上滑动,顶点B在OP上滑动,求三角形ABC的重心G的轨迹方程。
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player1703 posted 2021-11-14 23:44
forum.php?mod=viewthread&tid=6834&extra=page=2
轨迹是椭圆那贴7楼的一般方法可以得出长轴短轴

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