已知:如图,在Rt△ABC中,∠C=90°,点O在AB上,以O为圆心,OA长为半径的圆与AC,AB分别交于点D,E,且∠CBD=∠A.
(1)判断直线BD与⊙O的位置关系,并证明你的结论;
(2)若AD:AO=8:5,BC=2,求BD的长.
(1)判断直线BD与⊙O的位置关系,并证明你的结论;
(2)若AD:AO=8:5,BC=2,求BD的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/004fe009-2352-43d1-a862-c0a4b777ff57.png?resizew=168)
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更新时间:2016-12-05 09:02:40
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解答题-证明题
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适中
(0.65)
【推荐1】如图,已知
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(1)求证:直线
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(2)若
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解答题-证明题
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适中
(0.65)
【推荐2】如图,
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(1)求证:
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解答题-问答题
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适中
(0.65)
【推荐1】如图,已知AB是⊙O的直径,直线CD与⊙O相切于点C,AC平分∠DAB.
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(2)若AD=1,AC=
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(1)试说明:AD⊥DC;
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解答题-证明题
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(0.65)
【推荐2】如图,点B在线段CD上,在CD的同一侧作两个等腰直角△ABC和△BDE,且∠ACB=∠BED=90°,AD与CE,BE分别交于点P,M,连接PB.
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