以c为半径的圆上一点与两焦点的连线分别交椭圆ab和cdabcd交于点q证明q在y=b^2c上？ 知乎 Sketch Coloring Page

以c为半径的圆上一点与两焦点的连线分别交椭圆ab和cdabcd交于点q证明q在y=b^2c上？ 知乎 Template

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tomski以c为半径的圆上一点与两焦点的连线分别交椭圆ab和cdabcd交于点q证明q在y=b^2c上？ 知乎 coloring

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以c为半径的圆上一点与两焦点的连线分别交椭圆AB和CDABCD交于点Q证明Q在y=b^2/c上？ 知乎 sketch template

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16．如图在以O为圆心的两个同心圆中大圆的弦AB与小圆相切于点C若大圆的半径为5 Cm小圆的半径为3 Cm则弦AB的长为 Cm sketch template

如图D是半径为R的⊙O上一点过点D作⊙O的切线交直径AB的延长线于点C下列四个条件�AD=CD�∠A=30°�∠ADC=120 sketch template

如图，AB是半圆O的直径，点C在半圆上，AB=5，AC=4，D是BC上的一个动点，连接AD．过点C作CE⊥ AD于E，连接BE，则BE的 sketch template

10．如图CD是⊙O的直径以D为圆心的圆与⊙O交于A与了B两点AB交CD于点ECD交⊙D于P已知PC＝6PE∶ED＝2∶1则AB sketch template

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18．如图已知AB=10点CD在线段AB上且AC=DB=2 P是线段CD上的动点分别以APPB为边在线段AB的同侧作等边 AEP和 sketch template

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