如图为⊙o的直径点c、d是 的三等分点则 的度数为（）组卷题库 Sketch Coloring Page

如图为⊙o的直径点c、d是 的三等分点则 的度数为（）组卷题库 Template

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sketch #1490 James Joyce....

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sketch #1490 James Joyce....

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anonymous
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sketch #5009 Elen Jager from Attack on Titan

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anonymous
sketch #5131 Miley Cyrus by Vannak Von

sketch #2640 Marge by Mirnes Sinanovic

Mirnes Sinanovic
sketch #2640 Marge by Mirnes Sinanovic

sketch #21085 Tobirama by Enrique L. Manly

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anonymous
sketch #21085 Tobirama by Enrique L. Manly

sketch #1454 donara

Donara Smbatyan
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sketch #1068 dançando

anonymous

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sketch #1068 dançando

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anonymous
sketch #4279 Winnie the Pooh by Douglas Dalmora

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anonymous

anonymous
sketch #4646 Panda by Raimundo Santos

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anonymous
sketch #3447 Hidan (Akatsuki) by ßeyza Karaca

sketch #3390 Beautiful drawing by Jessie Lightwood

anonymous

anonymous
sketch #3390 Beautiful drawing by Jessie Lightwood

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anonymous

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sketch #5224

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sketch #3510 Edward from FMA by Raman Chauhan

anonymous

anonymous
sketch #3510 Edward from FMA by Raman Chauhan

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sketch #4905 The Little Prince by Gaurav Patel

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anonymous
sketch #4905 The Little Prince by Gaurav Patel

tomski如图为⊙o的直径点c、d是 coloring

如图 为⊙O的直径 点C、D是 的三等分点 则 的度数为（）组卷题库 sketch template

已知如图⊙O的直径为10弦AC=8点B在圆�上运动连接BCBA过点C作CD⊥AB于D设CB的长为xCD的长为y．1求y sketch template

如图，AB为⊙O的直径，点C、D都在⊙O上，且CD平分∠ACB，交AB于点E．（1）请判断 ABD的形状，并说明理由；（2）若DE=13，AE sketch template

如图AB为⊙O的直径点CD在⊙O上．若∠AOD=30°则∠BCD的度数是 度．题目和参考答案——青夏教育精英家教�—— sketch template

$如图⊙O的直径AB长为6点CE是圆上一点且∠AEC=30°．过点C作CD⊥AB垂足为点D则AD的长为$frac{3}{2 sketch template$

如图AB为⊙O的直径点C在AB的延长线上点D在⊙O上且AD=CD如果tanC=33BC=1．求AD长题目和参考答案——青夏教育 sketch template

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

如图AB是⊙O的直径CD是⊙O上的两点若∠ABC=70°则∠BDC的度数为 A．50°B．40°C．30°D．20° 题目和参考 sketch template

已知如图OA是⊙O的半径以OA为直径的⊙C与⊙O的弦AB相交于点D．求证点D是AB的中点．题目和参考答案——青夏教育精英家教�—— sketch template

如图AB为⊙O的直径点CD在⊙O上．若∠AOD=30°则∠BCD的度数是 度．题目和参考答案——青夏教育精英家教�—— sketch template

如图 ABC为⊙O的内接三角形AB为⊙O的直径点D为⊙ O上一点且∠BAC=2∠ABD过点D作DE∥BC交CA的延长线于点E1 sketch template

如图在 ABC中AB=AC以AB为直径的⊙O交BC于点D．1求证点D是BC的中点2过点D作DE⊥AC求证DE是⊙O的切线 sketch template

如图AB是⊙O的直径点CD是半圆弧AB上的两个三等分点AB=aAC=b则AD= A12a BB12a BCa 12bD sketch template

如图已知AB为⊙O的直径过⊙O上的点C的切线交AB的延长线于点EAD⊥EC于点D且交⊙O于点F连接BCCFAC．1求证BC sketch template

如图已知AB为⊙O的直径AB=2AD和BE是圆O的两条切线AB为切点过圆上一点C作⊙O的切线CF分别交ADBE于点MN sketch template

如图，AB是⊙O的直径，点C是⊙O上一点，点D是弧CB的中点，过点D作⊙O的切线，与AB，AC的延长线分别交于点E，F，连接AD．（1）求证 sketch template

如图已知AB是⊙O的直径点C在⊙O上过点C的直线与AB的延长线交于点PAC=PC∠COB=2∠PCB．1求证PC是⊙O的切线 sketch template

如图，AB为⊙O的直径，C为⊙O上一点，弦AD平分∠BAC，交BC于点E，AB＝10，AD＝8．（1）连结OD，求证：OD⊥CB；（2）求CD sketch template

如图，四边形ABCD内接于⊙O，AB为⊙O的直径，过点C作CE⊥AD交AD的延长线于点E，延长EC，AB交于点F，∠ECD=∠BCF．（1 sketch template

已知如图AB为⊙O的直径CD为⊙O上的两点且C为AD的中点若∠BAD=20°求∠ACO的度数．题目和参考答案——青夏教育精英家教�—— sketch template

如图AB为⊙O的直径CD为⊙O上不同于AB的两点∠ABD=2∠BAC过点C作CE⊥DB垂足为点E直线AB与CE交于点F．1 sketch template

如图已知AB是⊙O的直径点C在⊙O上过点C的直线与AB的延长线交于点PAC=PC∠COB=2∠PCB．1求证PC是⊙O的切线 sketch template

如图，AB为⊙O的直径，点C为 下方的一动点，连结OC，过点O作OD⊥OC交BC于点D，过点C作AB的垂线，垂足为F，交DO的延长线于点E。 sketch template

如图AB为的直径点C在⊙O上 B=50°则∠A等于 A30° B40° C50° D60°——青夏教育精英家教�—— sketch template

百度教育 sketch template

如图AB是⊙O的直径CD是⊙O上的点∠CDB=30°过点C作⊙O的切线交AB的延长线于E则sin∠E的值为 A．12B．32C sketch template

如图⊙O的直径AB与弦AC的夹角为30°切线CD与AB的延长线交于点D．若⊙O的半径为3则CD的长为 ．题目和参考答案——青夏教育精英家教�—— sketch template

如图AB为圆O的直径点C在圆�上直线PA垂直于圆所在的平面点M为线段PB的中点有以下四个�题MO∥平面PAC平面PAC⊥平面PBC sketch template

如图AB为⊙O的直径点C是⊙O上的一点CD⊥AB垂足为点DCF⊥AF且CF=CDAF交⊙O于点EBE交AC于点M．1求证 sketch template

百度教育 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

如图AB为⊙O的直径C为⊙O上一点过点C作⊙O的切线交BA的延长线交于点D过点B作BE⊥BA交DC延长线于点E连接OE交⊙O于 sketch template

如图6为的直径点为其半圆上任意一点点为另一半圆上一定点若为度为度．则与的函数关系是 ．——青夏教育精英家教�—— sketch template

如图，AB为⊙O的直径，C为⊙O上一点，AD和过C点的切线互相垂直，垂足为D，AD交⊙O于点E．（1）求证：AC平分∠DAB；（2）若∠B 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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