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已知三个圆，作出三条外公切线并求出�长有没有比较简洁的做法？ 知乎 Template






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sketch 3149 Dude with a sword by Elio Hernandez
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sketch 3599 Lovely pencil face
sketch 5236 Edward Scissorhands by Ronin Ronin
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tomski已知三个圆，作出三条外公切线并求出�长有没有比较简洁的做法？ 知乎 coloring
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多个圆的最小外切三角形 1 知乎 sketch template
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多个圆的最小外切三角形 1 知乎 sketch template
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对单尺作图的三圆问题的研究严肃版 知乎 sketch template
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几何：如何用尺规作一个与三个圆都正交的圆？ 知乎 sketch template
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四圆两两相切问题——一道尺规作图问题的探究历程 知乎 sketch template
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已知三角形内切圆与外接圆如何尺规作图作出三角形？ 知乎 sketch template
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四圆两两相切问题——一道尺规作图问题的探究历程 知乎 sketch template
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四圆两两相切问题——一道尺规作图问题的探究历程 知乎 sketch template
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四圆两两相切问题——一道尺规作图问题的探究历程 知乎 sketch template
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《几何原本》是如何只用尺规作给定圆外切正五边形的？ 知乎 sketch template
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四圆两两相切问题——一道尺规作图问题的探究历程 知乎 sketch template
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如何用尺规作图的方法将一条线段三等分 知乎 sketch template
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11 3 圆和切线 知乎 sketch template
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给定任意三角形，并做出三个旁心圆，如何用尺规作出一个原与旁心圆内切，与旁心圆B和C外切？ 知乎 sketch template
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基于RSSI的无线传感器络距离修正定位算法 AET 电子技术应用 sketch template
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如图由三个半径为10厘米的圆组成了三环图形其中每两个圆的公共部分都完全相同．1画出这个三环图形所有的对称轴2若三环图形的面积为 sketch template
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题目已知⊙O及⊙O外一点P．1方法证明如何用直尺和圆规过点P作⊙O的一条切线小明设计了如图所示的方法连接OP以OP为直径 sketch template
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如图三个半径为的圆两两外切且 ABC的每一边都与其中的两个圆相切那么 ABC的长是 ． 题目和参考答案——青夏教育精英家教—— sketch template
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两个圆的公切线 Kpole 博客园 sketch template
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如图中的三个圆的半径都是5厘米，三个圆两两相交于圆心，求阴影部分的面积． 百度教育 sketch template
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已知三个圆的半径都是3厘米求阴影部分的面积． 题目和参考答案——青夏教育精英家教—— sketch template
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如图三个半径为3的圆两两外切且 ABC的每一边都与其中的两个圆相切那么 ABC的长是 ． 题目和参考答案——青夏教育精英家教—— sketch template
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AI、PS 中如何画圆相切？ 知乎 sketch template
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已知正三角形的边长为a，其内切圆的半径为r，外接圆的半径为R，r：a：R= ；已知正方形的边长为a 百度知道 sketch template
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如图分别以直角三角形ABC三边为直 径外作三个半圆其面积分别用S1S2S3表示 1 如图分别以直角三角形ABC三边为 sketch template
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隧道断面三心圆怎么画 sketch template
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如图已知甲乙丙三个圆的面积均为30甲与乙乙与丙甲与丙重合部分的面积分别为685同时被这三个圆覆盖的部分的面积为2．请问1 sketch template
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19．如图已知三个同心圆等边三角形ABC的三个项点分别在三个圆上请你先把这个三角形绕着点O顺时针旋转120度再说明旋转的结果——青夏 sketch template
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如图已知甲乙丙三个圆的面积均为30甲与乙乙与丙甲与丙重合部分的面积分别为685同时被这三个圆覆盖的部分的面积为2．请问1 sketch template
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解：当知道圆的一条弦长和该弦所对的圆角时，常是经过这条弦的一个端点，作出圆的一条直径，然后利用圆角定理，把所有的已知条件都迁移到刚才所作的 sketch template
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已知一椭圆上6个点的位置（没有椭圆的图像），如何用尺规作出此椭圆的中心、焦点？ 知乎 sketch template
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如图三个圆的半径是5厘米这三个圆两两相交于圆心．求阴影部分的面积之和． 题目和参考答案——青夏教育精英家教—— sketch template
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在桌面上放置3个两两重叠形状相同的圆形纸片它们的面积都是110平方厘米盖住桌面的总面积是152平方厘米3张纸片共同重叠的面积是49平方 sketch template
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如图，在以点O为圆心的两个同心圆中，大圆的弦AB交小圆于点C、D 已知AB=4，CD=2，圆心O到直线AB的距离为1，则大圆的半径为 ，小圆 sketch template
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2．如图分别以直角三角形ABC三边为直径外作三个半圆其面积分别用S1S2S3表示则不难证明S1=S2 S3 1 如图 sketch template