已知如图cd⊥abbe⊥ac垂足分别为debecd相交于o点 ∠1=∠2图中全等的三角形共有a．1对 B．2对 C．3对 D Sketch Coloring Page

已知如图cd⊥abbe⊥ac垂足分别为debecd相交于o点 ∠1=∠2图中全等的三角形共有a．1对 B．2对 C．3对 D Template

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sketch #4979 Luffy

anonymous

anonymous
sketch #4979 Luffy

sketch #5150 Regina from Dino Crisis by Hsien-Ying Hsieh

anonymous

anonymous
sketch #5150 Regina from Dino Crisis by Hsien-Ying Hsieh

sketch #3547 Lady in red Toky Niaina Randrianarisoa

anonymous

anonymous
sketch #3547 Lady in red Toky Niaina Randrianarisoa

sketch #4358 Wink Károly Benkő

anonymous

anonymous
sketch #4358 Wink Károly Benkő

sketch #3012 Girl by Safa M. Esam Srk

anonymous

anonymous
sketch #3012 Girl by Safa M. Esam Srk

sketch #3372 Erza by Konstantin Kuznetsov

anonymous

anonymous
sketch #3372 Erza by Konstantin Kuznetsov

sketch #1287 No smoke

anonymous

anonymous
sketch #1287 No smoke

sketch #2636 Robitina by sketchmaster

sketchmaster
sketch #2636 Robitina by sketchmaster

sketch #1043 Deadoo..

Cherie N Patanao
sketch #1043 Deadoo..

sketch #3399 zay lin

Zay Lin
sketch #3399 zay lin

sketch #5312

anonymous

anonymous
sketch #5312

sketch #2250 lelouch

anonymous

anonymous
sketch #2250 lelouch

sketch #3250 Lonely cat Lars Tunebo

anonymous

anonymous
sketch #3250 Lonely cat Lars Tunebo

sketch #5368

anonymous

anonymous
sketch #5368

sketch #2627 Taz by sketchmaster

sketchmaster
sketch #2627 Taz by sketchmaster

sketch #3800

Fon Talesrunner
sketch #3800

sketch #3365 Igor by Johan Kennet Espinoza Moreno

anonymous

anonymous
sketch #3365 Igor by Johan Kennet Espinoza Moreno

sketch #3000

anonymous

anonymous
sketch #3000

sketch #5181

anonymous

anonymous
sketch #5181

sketch #4975 Orange by Marcos Roberto Molina

anonymous

anonymous
sketch #4975 Orange by Marcos Roberto Molina

sketch #3420

anonymous

anonymous
sketch #3420

sketch #970 Depression

anonymous

anonymous
sketch #970 Depression

sketch #521 A hungry caterpillar

Tom Kelly
sketch #521 A hungry caterpillar

sketch #4915 Marshall Lee Gopal Gopi

anonymous

anonymous
sketch #4915 Marshall Lee Gopal Gopi

sketch #1474

anonymous

anonymous
sketch #1474

sketch #4834 Aayla Secura by Nînâ Yämâhä

anonymous

anonymous
sketch #4834 Aayla Secura by Nînâ Yämâhä

sketch #5153 Random Access Memories by Khin Nyunt

anonymous

anonymous
sketch #5153 Random Access Memories by Khin Nyunt

sketch #5297 Journey by Dmitry Sidorenko

anonymous

anonymous
sketch #5297 Journey by Dmitry Sidorenko

sketch #4589

anonymous

anonymous
sketch #4589

sketch #929 tree stump

anonymous

anonymous
sketch #929 tree stump

tomski已知如图cd⊥abbe⊥ac垂足分别为debecd相交于o点 ∠1=∠2图中全等的三角形共有a．1对 b．2对 coloring

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已知AC⊥BCAD⊥BDE为AB的中点1如图1求证 ECD是等腰三角形2如图2CD与AB交点为F若AD sketch template

已知如图CD⊥ABBE⊥AC垂足分别为DEBECD相交于O点 ∠1=∠2图中全等的三角形共有A．1对 B．2对 C．3对 D sketch template

已知如图CD⊥ABBE⊥AC垂足分别为DEBECD相交于O点 ∠1=∠2图中全等的三角形共有A．1对 B．2对 C．3对 D sketch template

如图CD⊥ABBE⊥AC垂足分别为DEBE与CD相交于点O且AD=AE有以下结论�∠B=∠C� ADO≌ AEO� BOD sketch template

如图C为线段BD上一动点分别过点BD作AB⊥BDED⊥BD连接ACEC已知AB=5DE=1BD=8设CD=x则AC CE sketch template

已知：AB是⊙O的直径，弦CD交AB于点E，且．（1）如图1，求证：CE=DE；（2）如图2，连接AC，点F为AC上的一点，连接BF，过点C作 sketch template

题目如图已知AB是⊙O的直径点CD在⊙O上∠D＝60°且AB＝6过O点作OE⊥AC垂足为E． 1求OE的长2若OE sketch template

题目如图在ABCD中AE⊥BCAF⊥CD垂足分别为EF且BE=DF．1求证ABCD是菱形2若AB=5AC=6求 sketch template

已知如图AB＝ACCE⊥AB于EBD⊥AC于D求证BD＝CE 提示由AB ＝ AC得∠B ＝∠C 又有 BC 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所示，已知AB为圆O的直径，CD是弦，且AB⊥CD于点E，连接AC、OC、BC． sketch template

已知如图PBPC分别是 ABC的外角平分线PM⊥ABPN⊥ACMN分别为垂足．求证1PM=PN2PA平分∠MAN sketch template

已知如图∠BAC的角平分线与BC的垂直平分线DG交于点DDE⊥ABDF⊥AC垂足分别为EF．1试说明BE=CF2若AF 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

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DDE⊥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

如图直线AB与CD相交于点OEO⊥CD垂足为O则图中∠AOE和∠BOD的关系是A．相等角B．互为补角C．对顶角D．互为余角题目和参考 sketch template

$已知线段ABCD为⊙O的两条弦且AB⊥CD于点H连接ACBCBD．1如图1过圆心O作OE⊥BD于点E求证OE=$frac sketch template$

如图AC⊥BCD在AB上∠CDA=90°则线段CDCD的长度是点C到直线AB的距离线段BC的长度是点B到直线ACAC的距离．题目和 sketch template

已知如图 ABC中∠ABC=45°CD⊥AB于DBE平分∠ABC且BE⊥AC于E与CD相交于点FH是BC边的中点连结DH与 sketch template

14．如图在直四棱柱ABCD A1B1C1D1中已知DC＝DD1＝2AD＝2ABAD⊥DCAB∥DCE为DC的中点． 1求证 sketch template

如图在扇形OAB中∠AOB=90°点C是AB上的一个动点OD⊥BCOE⊥AC垂足分别为DE．若DE=1则扇形OAB的面积为 sketch template

如图⊙O的两条弦ABCD互相垂直垂足为E且AB=CD．1求证AC=BD．2若OF⊥CD于FOG⊥AB于G问四边形 sketch template

已知如图等腰梯形ABCD中AB∥CD对角线AC⊥BD于OBC=132如果AB=aCD=ba b=34则a=2424b sketch template

如图�AB为⊙O的直径点M是过点A的切线上的一点连接BM交⊙O于点C点DE分别是弧BC和弧AC的中点连接AD交BM于点F连接AE sketch template

如图已知点BD分别在∠A的两边上C为∠A内一点且AB=ADCD=BCCE⊥AD于ECF⊥AB于F．试判断CE与CF是否相等并说明 sketch template

已知四边形ABCD内接于⊙O对角线ACBD交于点P．1如图1设⊙O的半径是r若AB CD=πr求证AC⊥BD2如图2过 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D为直角 ABC的斜边AB上一点DE⊥AB交AC于E如果 AED沿DE翻折A恰好与B重合联结CD交BE于F如果AC=8 sketch template

如图在四面体ABCD中AB⊥面BCD面ABC⊥面ACD且∠ACB=∠CBD=45°1求证BC⊥CD2求直线AC与平面 sketch template

1如图已知AB∥CD直线MN分别交ABCD于点EF∠BEF和∠EFD的角平分线交于点PEP与CD交于点GGH⊥EG交MN于H sketch template

如图 ABC内接于⊙OAB=AC连接AO并延长交BC于点D1求证BD=CD2如图点P为弧AB上一点连接BPCP作AH sketch template

已知如图AB=ADCB⊥ABCD⊥ADEF分别是BCDC的中点求证AE=AF．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AC为⊙O的弦AD平分∠BAC交⊙O于点DDE⊥C交AC的延长线于点E．1求证直线DE是⊙O的切线1 sketch template

如图1在四边形ABCD中如果对角线AC和BD相交并且相等那么�们把这样的四边形称为等角线四边形．1�在“平行四边形矩形菱形 中 sketch template

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