19．如图ef分别是平行四边形abcd对角线bd所在直线上两点de＝bf．请你以f为一个端点和图中已标有字母的某一点连成一条新的线段 Sketch Coloring Page

19．如图ef分别是平行四边形abcd对角线bd所在直线上两点de＝bf．请你以f为一个端点和图中已标有字母的某一点连成一条新的线段 Template

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sketch #5072

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anonymous
sketch #5072

sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain

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sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain

sketch #2554

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anonymous
sketch #2554

sketch #3575 Stitch by Laura Gutierrez Hinojosa

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anonymous
sketch #3575 Stitch by Laura Gutierrez Hinojosa

sketch #2771 Naruto by Милен Тревата

Милен Тревата
sketch #2771 Naruto by Милен Тревата

sketch #1257

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anonymous
sketch #1257

sketch #4901 Adventure Time by Louisette Alain

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sketch #4901 Adventure Time by Louisette Alain

sketch #5183

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sketch #5183

sketch #5330 Frozen by Amanda Kachadurian

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sketch #5330 Frozen by Amanda Kachadurian

sketch #4388 Homer and the Cherry

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anonymous
sketch #4388 Homer and the Cherry

sketch #4688

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anonymous
sketch #4688

sketch #474 waa

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anonymous
sketch #474 waa

sketch #3562 Angry by Leon Soria Ricardo

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sketch #3562 Angry by Leon Soria Ricardo

sketch #5165 Marceline by Marvin Chrome

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sketch #5165 Marceline by Marvin Chrome

sketch #2025

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anonymous
sketch #2025

sketch #5096

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anonymous
sketch #5096

sketch #1418 Dylan Thomas. Chayrolfrypan

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sketch #1418 Dylan Thomas. Chayrolfrypan

sketch #3604 Falling Manipati Surya

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sketch #3604 Falling Manipati Surya

sketch #1927

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anonymous
sketch #1927

sketch #5170

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anonymous
sketch #5170

sketch #4698

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anonymous
sketch #4698

sketch #3157 umpa lumpa

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anonymous
sketch #3157 umpa lumpa

sketch #5207 Gorilla by Jean-Benoit Renaud

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anonymous
sketch #5207 Gorilla by Jean-Benoit Renaud

sketch #4997 Rafael Leite Jose Rondon

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anonymous
sketch #4997 Rafael Leite Jose Rondon

sketch #3290 Calvin and Hobbes by অনন্ত জলিল

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sketch #3290 Calvin and Hobbes by অনন্ত জলিল

sketch #4979 Luffy

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anonymous
sketch #4979 Luffy

sketch #4895 Cat by Gaurav Patel

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sketch #4895 Cat by Gaurav Patel

sketch #5040 Amy Winehouse by Timothy Palfreyman

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sketch #5040 Amy Winehouse by Timothy Palfreyman

sketch #5090

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anonymous
sketch #5090

sketch #1043 Deadoo..

Cherie N Patanao
sketch #1043 Deadoo..

tomski19．如图ef分别是平行四边形abcd对角线bd所在直线上两点de＝bf．请你以f为一个端点和图中已标有字母的某一点连成一条新的线段 coloring

平行四边形的定义和性质 Word文档在线阅读与下载免费文档 sketch template

19．如图EF分别是平行四边形ABCD对角线BD所在直线上两点DE＝BF．请你以F为一个端点和图中已标有字母的某一点连成一条新的线段 sketch template

如图四边形ABCD是平行四边形对角线ACBD交于点O过点O画直线EF分别交ADBC于点EF求证OE＝OF——青夏教育精英家教�—— sketch template

如图四边形ABCD中对角线相交于点OEFGH分别是ABBDBCAC的中点．求证四边形EFGH是平行四边形．题目和参考答案 sketch template

如图所示平行四边形纸条ABCD中EF分别是边ADBC的中点张老师请同学们将纸条的下半部分平行四边形ABFE沿EF翻折得到一个V字形 sketch template

如图在平行四边形ABCD中O是AC与BC的交点过O点的直线EF与ABCD的延长线分别交于E，F 百度知道 sketch template

如图在平行四边形ABCD中EF过对角线的交点O，分别交ADBC与点EF，已知AB=4，BC=7，OE=3 百度知道 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

如图在平行四边形ABCD中点EF分别在ADBC上且AE=CF 求证BE=DF 题目和参考答案——青夏教育精英家教�—— sketch template

如图，四边形ABCD是平行四边形，对角线AC、BD相交于点O，点E、F分别在AB、AD上，AE=AF，连接EF，且AC⊥EF．（1）求证：四边 sketch template

如图平行四边形ABCD的对角线相交于点O直线EF经过点O分别与ABCD的延长线交于点EF．求证四边形AECF是平行四边形．题目和 sketch template

如图EFGH分别是四边形ABCD四条边的中点则四边形EFGH一定是 A．平行四边形B．矩形C．菱形D．正方形题目和参考答案 sketch template

如图在平行四边形ABCD中AB=6BC=4∠B=60°点E是边AB上的一点点F是边CD上一点将平行四边形ABCD沿EF折叠得到 sketch template

如图，已知四边形ABCD菱形，点E、F、G、H分别在菱形的四条边上，且AE=CG，AH=CF．（1）求证：四边形EFGH是平行四边形；（2）若 sketch template

如图将平行四边形纸片ABCD按如图方式折叠使点C与点A重合点D的落点记为点D′折痕为EF连接CF． 1求证四边形AFCE是菱形 sketch template

如图ABCD中EF∥BC GH∥AB GH线交于点O图中共有平行四边形 的个数 A6 B7 C8 D9——青夏教育 sketch template

如图在平行四边形ABCD中对角线ACBD的长度分别为10和6则AB长度的最大整数值是 A．8B．5C．6D．7——青夏教育精英家教�—— sketch template

如图过平行四边形ABCD的对角线的交点O作直线EF交ADBC分别于EF又HG分别为OBOD的中点试问四边形EHFG为平行四边形 sketch template

如图是一个平行四边形两边分别是7厘米和11厘米其中一条底边上的高是8厘米这个平行四边形的面积是 平方厘米．题目和参考答案——青夏教育 sketch template

12分如图在平行四边形ABCD中对角线ACBD相交于点OBD=2ADEFG分别是OCODAB的中点求证1BE⊥ sketch template

如图P为平行四边形ABCD内一点过P分别做ABAD的平行线．交平行四边形各边分别于EFGH．若平行四边形AHPE的面积为4平行 sketch template

如图1四边形ABCD中AC⊥BD于点O点EFGH分别为边ABBCCDAD的中点连接EFFGGHEHBD分别与EF sketch template

如图�们把依次连接任意四边形ABCD各边中点所得四边形EFGH叫中点四边形．1若四边形ABCD是菱形则它的中点四边形EFGH一定是 sketch template

如图所示四边形EFGH为空间四边形ABCD的一个截面若截面为平行四边形 1求证AB∥平面EFGHCD∥平面EFGH 2若 sketch template

如图，在正方形ABCD中，E、F、G、H分别为AB、CD、BC、AD上的点，EF与GH相交于点P，且EF⊥ GH，连接EG、GF、FH、HE sketch template

如图EFGH分别是四边形ABCD的边ABBCCDDA的中点顺次连接EFGH所得的四边形EFGH显然是平行四边形．1当 sketch template

如图所示在四边形ABCD中EFGH分别是四边形ABCD各边的中点已知阴影部分的面积是10求四边形SRPQ的面积．题目和参考答案 sketch template

百度教育 sketch template

如图所示在平行四边形ABCD中EF分别是ABCD上的点且AE=CF连接BFDE试猜测∠ADE与∠CBF的大小关系并加以证明 sketch template

如图以 ABC的三边为边在BC的同侧分别作3个等边三角形即 ABD BCE ACF．1求证四边形ADEF是平行四边形2当 sketch template

百度教育 sketch template

如图四边形EFGH是由四边形ABCD经过旋转得到的．如果用有序数对21表示方格纸上A点的位置用12表示B点的位置那么四边形 sketch template

如图在平行四边形DEBF中对角线EFBD 相较于点O若AC是直线EF上的两个动点分别从点EF出�以1cm/s的相同速度�远离点O sketch template

如图四边形ABCD为菱形 1 用直尺和圆规作出过菱形的顶点 ABC的圆记为⊙O 要求保留作图痕迹不必写出作法 2连接 sketch template

顺次连接四边形ABCD各边中点得到四边形EFGH要使四边形EFGH是菱形应添加的条件是AAD∥BCBAC=BDCAC⊥BDDAD sketch template

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