如图线段ab是⊙o的直径点cd为⊙o上的点过点c作⊙o的切线交ab的延长线于点e若∠e=50°则∠cdb等于 A20°b Sketch Coloring Page

如图线段ab是⊙o的直径点cd为⊙o上的点过点c作⊙o的切线交ab的延长线于点e若∠e=50°则∠cdb等于 A20°b Template

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sketch #4493 Jimi Hendrix by Alex Stoun

anonymous

anonymous
sketch #4493 Jimi Hendrix by Alex Stoun

sketch #1221 səhər
abbasova
gözəi
qız
hamı
məni çox
seve
anam da
çox
sevir

anonymous

anonymous
sketch #1221 səhər abbasova gözəi qız hamı məni çox seve anam da çox sevir

sketch #2278 flower

anonymous

anonymous
sketch #2278 flower

sketch #4446 EDDIE by يآآسر محمد

anonymous

anonymous
sketch #4446 EDDIE by يآآسر محمد

sketch #4160

Hank Henry Armstrong
sketch #4160

sketch #846 cat fridayz z z zzzz zz

anonymous

anonymous
sketch #846 cat fridayz z z zzzz zz

sketch #4929

anonymous

anonymous
sketch #4929

sketch #3727 Stitch by Louis Tradieu

anonymous

anonymous
sketch #3727 Stitch by Louis Tradieu

sketch #5053

anonymous

anonymous
sketch #5053

sketch #5175

anonymous

anonymous
sketch #5175

sketch #2549

anonymous

anonymous
sketch #2549

sketch #5306 Katarina by Mirnes Sinanovic

anonymous

anonymous
sketch #5306 Katarina by Mirnes Sinanovic

sketch #5236 Edward Scissorhands by Ronin Ronin

anonymous

anonymous
sketch #5236 Edward Scissorhands by Ronin Ronin

sketch #4975 Orange by Marcos Roberto Molina

anonymous

anonymous
sketch #4975 Orange by Marcos Roberto Molina

sketch #3743 Just for fun

Jay Lantz
sketch #3743 Just for fun

sketch #342 Forest scene

Chris Shrimp Lonsdale
sketch #342 Forest scene

sketch #5154

anonymous

anonymous
sketch #5154

sketch #2453 Koi Fish

anonymous

anonymous
sketch #2453 Koi Fish

sketch #5027

anonymous

anonymous
sketch #5027

sketch #4479

Hank Henry Armstrong
sketch #4479

sketch #5187

anonymous

anonymous
sketch #5187

sketch #3244 Winnie the Pooh by Ashok Kumar Chaturvedi

anonymous

anonymous
sketch #3244 Winnie the Pooh by Ashok Kumar Chaturvedi

sketch #5058

anonymous

anonymous
sketch #5058

sketch #1454 donara

Donara Smbatyan
sketch #1454 donara

sketch #5119

anonymous

anonymous
sketch #5119

sketch #3656 Igor by Vincent Baudement

anonymous

anonymous
sketch #3656 Igor by Vincent Baudement

sketch #1453

anonymous

anonymous
sketch #1453

sketch #2987

anonymous

anonymous
sketch #2987

sketch #4298

anonymous

anonymous
sketch #4298

sketch #4454 Lisa by Muhammad Raiyaan

anonymous

anonymous
sketch #4454 Lisa by Muhammad Raiyaan

tomski如图线段ab是⊙o的直径点cd为⊙o上的点过点c作⊙o的切线交ab的延长线于点e若∠e=50°则∠cdb等于 a20°b coloring

如图四边形ABCD内接于⊙OAB是⊙O的直径AC和BD相交于点E且1求证BC=CD2分别延长ABDC交于点P过点A作 sketch template

如图，在四边形ABCD中，对角线AC与BD交于点O，已知OA =OC，OB=OD，过点O作EF⊥ BD，分别交AB、DC于点E，F，连接DE sketch template

题目如图AB是⊙O的直径点C是⊙O上一点∠BAC的平分线AD交⊙O于点D过点D垂直于AC的直线交AC的延长线于点E． 1求证 sketch template

如图，AB为⊙O的直径，C、D为⊙O上的两点，且AC平分∠BAD，过点C作直线EF⊥AD，交AD的延长线于点E． 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在 ABC中BE是它的角平分线∠C=90°D在AB边上以DB为直径的半圆O经过点E交BC于点F．1求证AC是⊙O的切线 sketch template

如图AB是半圆⊙O的直径 ABC的两边ACBC分别交半圆于DE且E为BC的中点已知∠BAC=50°则∠C= A 55 sketch template

如图 ABC为等边三角形以边BC为直径的半圆与边ABAC分别交于DF两点过点D作DE⊥AC垂足为点E．1判断DE与⊙O的位置 sketch template

如图 ABC是⊙O的内接三角形AB是⊙O的直径∠ABC=30度．将 ABC沿直线AB�右平移使点A与点O重合则BC与⊙O的位置关系是 sketch template

题目如图在⊙O 中ABCD是互相垂直的两条直径点E在上CF⊥AE 于点F若点F四等分弦AE且AE＝8则⊙O 的面积为 sketch template

如图，AB是⊙O的直径，点C为的中点，CF为⊙O的弦，且CF⊥AB，垂足为E，连接BD交CF于点G，连接CD，AD，BF sketch template

题目如图在⊙O中点C在优弧AB上将弧BC沿BC折叠后刚好经过AB的中点D 若⊙O的半径为AB=8则BC的长是 ABC sketch template

在平面直角坐标系xOy中，⊙ O的半径为1对于线段AB，给出如下定义：若线段AB沿着某条直线l对称可以得到⊙ O的弦AB，则称 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，AB为⊙O的直径，C是⊙O上一点，D在AB的延长线上，且∠DCB=∠A．E是AB下半圆弧中点，连接CE交AD于F．（1）求证：CD与⊙O sketch template

如图⊙O是四边形ABCD的外接圆AC是直径分别延长ABCD相交于点EAC=AE过点D作DF∥BC于点F．1求证AC•DF sketch template

如图1⊙O是 ABC的外接圆AB是直径OD∥AC且∠CBD=∠BACOD交⊙O于点E．1求证BD是⊙O的切线2若点E为 sketch template

如图O为正方形ABCD对角线AC上一点以O为圆心OA长为半径的⊙0与BC相切于点M与ABAD分别相交于点EF．1求证CD与⊙ sketch template

如图．AB是⊙O的直径，点C，D在⊙O上，C是的中点，连接BD交AC于点E，延长AC至F，使CE＝CF． sketch template

如图，AB是⊙ O的直径，四边形ABCD内接于⊙ O，D是 AC的中点，DE⊥ BC交BC的延长线于点E1求证：DE是⊙ O的切线 sketch template

已知三角形ABC内接于⊙O过点A作直线EF．1如图1AB为直径要使得EF是⊙O的切线还需添加的条件是只须写出三种情况2 sketch template

如图AB是⊙O的直径点DE是半圆的三等分点AEBD的延长线交于点C若CE=2则图中阴影部分的面积是 A43π 3B sketch template

如图在 ABC中AB=AC=4D是线段BC的中点以AB为直径作⊙O试判断点D与⊙O的位置关系．题目和参考答案——青夏教育精英家教�—— 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Rt ABC中∠ABC=90°以AB为直径的⊙O交AC于点DE为BC的中点连接DEOD．1求证DE是⊙O的切线2 sketch template

已知 ABC是等边三角形以BC为直径的半圆O与边AB相交于点DDE⊥AC垂足为点E．1判断DE与⊙O的位置关系并证明你的结论2 sketch template

12．如图AB是⊙O的弦OC⊥AB于点D交⊙O于点C若⊙O的半径为10CD＝4那么AB的长为 ．——青夏教育精英家教�—— sketch template

如图AB是⊙O的直径BC是⊙O的弦半径OD⊥BC垂足为E若BC=6DE=3 1图中有很多结论例如OA=OC=OD=OB等 sketch template

题目如图AB是⊙O的直径C是⊙O上一点D在AB的延长线上且∠BCD=∠A．1求证CD是⊙O的切线2若⊙O的半径为3 sketch template

如图AB是⊙O的直径AB=4点M是OA的中点过点M的直线与⊙O交于CD两点．若∠CMA=45°则弦CD的长为$sqrt{14 sketch template

22．如图2已知AB是⊙O的直径BC为弦∠A BC=30°过圆心O作OD⊥BC交弧BC于点D连接DC则∠DCB= °——青夏教育 sketch template

如图AB是⊙O的直径点C为⊙O上一点AE和过点C的切线互相垂直垂足为EAE交⊙O于点D直线EC交AB的延长线于点P连接ACBC sketch template

如图AB是⊙O的直径PAPC是⊙O的切线AC是切点PB交⊙O于点D．1求证∠APC=2∠BDC2若CD∥AB求sin sketch template

如图AB是⊙O的直径C是⊙O上一点直线MN经过点C过点A作直线MN的垂线垂足为点D且∠BAC=∠DAC．求证MN是⊙O的切线 sketch template

如图AB是⊙O的直径CP是弧AB上两点AB=13AC=5．若点P是弧AB的中点求PA的长若点P是弧BC的中点求PA的长 sketch template

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