如右上图正方形abcd中ef分别是adbc上的一点若补充一个条件可使结论be=df成立则下列补充的条件�ae=cf�be∥df�∠ Sketch Coloring Page

如右上图正方形abcd中ef分别是adbc上的一点若补充一个条件可使结论be=df成立则下列补充的条件�ae=cf�be∥df�∠ Template

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anonymous

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anonymous

anonymous
sketch #3680 Infected Mushroom by Rohit Rahul

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anonymous

anonymous
sketch #5091 The Red Lady by অনন্ত জলিল

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anonymous

anonymous
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sketch #1504 donara

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sketchmaster
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anonymous

anonymous
sketch #4454 Lisa by Muhammad Raiyaan

sketch #3508 Medusa by Nelly Panambo

anonymous

anonymous
sketch #3508 Medusa by Nelly Panambo

sketch #2640 Marge by Mirnes Sinanovic

Mirnes Sinanovic
sketch #2640 Marge by Mirnes Sinanovic

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Abdul Kaium Alamgir
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sketch #2457 cool beans brother

sketchmaster
sketch #2457 cool beans brother

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anonymous

anonymous
sketch #4876 Luffy by Nycole Prietsch

sketch #3381 DBZ by Adidtzu Ady

anonymous

anonymous
sketch #3381 DBZ by Adidtzu Ady

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sketchmaster
sketch #2476 Asuna from SAO by sketchmaster

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Chris Shrimp Lonsdale
sketch #137

sketch #135 TYGER Style

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anonymous

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sketch #3769 The Beatles by يآآسر محمد

anonymous

anonymous
sketch #3769 The Beatles by يآآسر محمد

sketch #1995

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sketch #3950

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tomski如右上图正方形abcd中ef分别是adbc上的一点若补充一个条件可使结论be=df成立则下列补充的条件�ae=cf�be∥df�∠ coloring

如右上图正方形ABCD中EF分别是ADBC上的一点若补充一个条件可使结论BE=DF成立则下列补充的条件�AE=CF�BE∥DF�∠ sketch template

如图1在正方形ABCD中点EF分别为边BCCD的点AFDE相交于点G．如图1若点EF不是正方形ABCD的边BCCD的中点但 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，在4x4的正方形�格中，每个小正方形的顶点称为格点，每个小正方形的边长均为1．在图�，图�中已画出线段AB，在图�中已画出点A．按下列 sketch template

�国汉代数学家赵爽在注解《�髀算经》时给出的“赵爽弦图”如图所示，它是由四个全等的直角三角形与中间的小正方形拼成的一个大正方形．若大正方形的 sketch template

在正方形ABCD中点P是CD边上一动点连接PA分别过点BD作BE⊥PADF⊥PA垂足分别为EF．1如图�请探究BEDF sketch template

【问题情境�（1）如图1，正方形ABCD中，E、F分别是边AB和对角线AC上的点，∠EDF=45°．易证 DBE∽ DCF（不需写出证明过程 sketch template

小明遇到一个问题如图1正方形ABCD中EFGH分别是ABBCCD和DA边上靠�ABCD的n等分点连接AFBGCH sketch template

如图点P是正方形ABCD的对角线BD上一点PE⊥BCPF⊥CD垂足分别为点EF连接APEF给出下列四个结论�AP=EF�∠ sketch template

如图正方形ABCD的边长为a分别以正方形的四个顶点为圆心边长为半径在正方形内画弧求图中阴影部分的面积．题目和参考答案——青夏教育 sketch template

百度教育 sketch template

如图在直角坐标系中四边形ABCD是正方形 AC 曲线AAAA 叫做“正方形的渐开线其中AA AAAA 的圆心依次是点BC sketch template

正方形ABCD和正方形EFGH的边长都是1，点E是正方形ABCD的中点，在正方形EFGH绕着点E旋转的过程中 百度知道 sketch template

百度教育 sketch template

如图 （问题情境） 如图1 四边形ABCD是正方形 M是BC边上的一点 E是CD边的中点 AE平分∠DAM 出卷� sketch template

如图正方形ABCD在坐标系中的位置如图所示将正方形ABCD绕D点顺时针方�旋转90°后B点到达的位置坐标为 A B 41 C sketch template

题目如图1正方形纸片ABCD的边长为2翻折∠B∠D使两个直角的顶点重合于对角线BD上一点PEFGH分别是折痕．设AE＝x0 sketch template

5．如图2 14所示．在正方形ABCD中PQ分别为BCCD边上的点∠PAQ=45 求证PQ=PB DQ．——青夏教育精英家教�—— sketch template

16．如图5菱形ABCD中AE⊥BC于EAF⊥CD于F若EF正好是BccD的中点当菱形ABCD的�长为16cm则ΔAEF的 sketch template

如图1，一个边长为6的正方形被分割成四个完全相同的直角三角形和一个阴影小正方形（无缝隙、不重叠），现将这四个直角三角形分别沿着正方形四条边� sketch template

如图正方形ABCD中点E是AB的中点连接DE在DE上取一点G连接BG使BG=BC连接CG并延长与AD交于点F在CG上取一动点P sketch template

如图正方形ABCD中点EF分别在BCCD上∠EAF=45°AEAF分别于BD相交于点MN1求证BM2 DN2=MN2 sketch template

如图正方形ABCD的边长为10厘米EFGH分别为正方形四边上的中点求阴影部分的面积是多�平方厘米．题目和参考答案——青夏教育精英 sketch template

如图在正方形ABCD中点EF分别在CDBC上且BF=CE连接BEAF相交于点G则下列结论不正确的是 A．BE=AFB．∠ sketch template

如图，在中，对角线AC，BD相交于点O， sketch template

如图所示在四棱锥S ABCD中底面ABCD是正方形侧棱SD⊥平面ABCDSD=DC点E是SC的中点作EF⊥SB交SB于点F．1 sketch template

题目如图1在正方形ABCD中AD=6点P是对角线BD上任意一点连接PAPC过点P作PE⊥PC交直线AB于点E1求证 sketch template

如图边长为3的正方形ABCD绕点C按顺时针方�旋转30°后得到的正 方形EFCGEF交AD于点H那么DH的长为 16已知方程有两个 sketch template

5．正方形ABCD中EF与GH都是端点分别在正方形对边上且互相垂直的两条线段那么下列表示EFGH的关系中正确的是 A． EF sketch template

百度教育 sketch template

如图1已知四边形ABCD是正方形对角线ACBD相交于点E以点E为顶点作正方形EFGH．1如图1点AD分别在EH和EF上连接 sketch template

（1）【�现证明�问题：如图1，在正方形ABCD中，点E、F分别是BC、CD边上的动点，且∠EAF=45°，求证：EF=DF BE．观察：EF sketch template

如上右图四边形ABCD是正方形CE＝MN∠MCE＝35°那么∠ANM 等于 ——青夏教育精英家教�—— sketch template

如图所示在四棱锥S ABCD中底面ABCD是正方形侧棱SD⊥平面ABCDSD=DC点E是SC的中点作EF⊥SB交SB于点F．1 sketch template

如图在正方体ABCD ABCD中O是底面正方形ABCD中心M是DD的中点N是AB上的动点则直线ONAM的位置关系是 A平行 sketch template

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