腰为定长的等腰三角形的底角的顶点的轨迹是什么
已知两个顶点A,B的距离为3厘米,这时到点A,B的距离之和为3厘米的点的轨迹是什么
已知两个顶点A,B的距离为3厘米,这时到点A,B的距离之差为3厘米的点的轨迹是什么
人气:298 ℃ 时间:2019-12-18 20:25:59
解答
1.
已知两个顶点A,B的距离为3厘米,这时到点A,B的距离之和为3厘米的点的轨迹是
点C:AC=CB=1.5㎝
2.
已知两个顶点A,B的距离为3厘米,这时到点A,B的距离之差为3厘米的点的轨迹是
一条直线 y=0
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