【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 Coloring Page

【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 Template

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tomski【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 coloring

【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

如图1在正方形ABCD中点EF分别为边BCCD的点AFDE相交于点G．如图1若点EF不是正方形ABCD的边BCCD的中点但 sketch template

小明遇到一个问题如图1正方形ABCD中EFGH分别是ABBCCD和DA边上靠�ABCD的n等分点连接AFBGCH sketch template

【问题情境�如图1，点E为正方形ABCD内一点，∠AEB=90°，将Rt ABE绕点B按顺时针方�旋转90°，得到 CBE′（点A的对应点为点 sketch template

11．如图EF分别在正方形ABCD的边ADCD上且∠FBC=∠EBF 求证BE=AE CF．——青夏教育精英家教�—— sketch template

难点解析丨正方形中的动点问题 知乎 sketch template

探究：（1）如图1，在正方形ABCD中，E、F分别是BC、CD上的点，且∠EAF=45°，试判断BE、DF与EF三条线段之间的数量关系，直接 sketch template

如图1已知点E在正方形ABCD的边BC上若∠AEF=90°且EF交正方形外角的平分线CF于点F．1图1中若点E是边BC的中点�们 sketch template

如图1在正方形ABCD中点E是CD的中点点F是BC边上一点且∠BAF=∠EAD．1求证EF⊥AE2将“正方形 改成“矩形 sketch template

如图1正方形ABCD中点O为对角线AC的中点点P在直线上AC作直线BP分别作AE⊥BPCF⊥BP垂足分别为点E点F．1求证 sketch template

24．如图1正方形ABCD和正方形QMNP M是正方形ABCD的对称中心MN交AB于FQM交AD于E．——青夏教育精英家教�—— 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

百度教育 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

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⊥PADF⊥PA垂足分别为EF．1如图�请探究BEDF sketch template

难点解析丨正方形中的动点问题 知乎 sketch template

如图在正方形ABCD中点E为对角线AC上的一点连接BEDE．1如图1求证 BCE≌ DCE2如图2延长BE交直线CD于 sketch template

八数下导学案 正方形习题课 Word文档在线阅读与下载无忧文档 sketch template

【问题情境�如图1，圆与大正方形的各边都相切，小正方形是圆的内接正方形，那么大正方形面积是小正方形面积的几倍小昕将小正方形绕圆心旋转如图2 sketch template

如图1一等腰直角三角尺GEF的两条直角边与正方形ABCD的两条边分别重合在一起．现正方形ABCD保持不动将三角尺GEF绕斜边EF的中点O sketch template

1如图1在边长为1的正方形ABCD内⊙O1⊙O2互相外切且⊙O1与边ABAD相切⊙O2与边BCCD相切求⊙O1⊙O2半径 sketch template

（1）如图1，正方形�格中，点A，B，C，D为格点，AB交CD于点O．则sin∠AOC=．（2）如图2，点P是线段AB上的动点，分别以AP sketch template

百度教育 sketch template

如图1是由边长为3和4的两个正方形拼成的图形将将该图剪成如图所示序号分别为��的五部分再将它拼成一个大正方形．1大正方形的 sketch template

百度教育 sketch template

如图1，在正方形中，点、分别是、的中点，、相交于点，则可得得结论：�；�。不需要证明。 1如图2，若点、不是正方形的边的中点，但满足 sketch template

数学家莫伦在1925年�现了世界上第一个完美长方形如图1即它恰好能被分割成10个大小不同的正方形从这以后人们开始热衷图形完美分割的研究 sketch template

如图在4×4的正方形�格中每个小正方形的边长均为1每个小正方形的顶点叫做格点．1在图1中以格点为顶点画 ABC使 ABC的三边长 sketch template

如图1纸上有五个边长为1的小正方形组成的图形纸�们可以把它剪开拼成一个正方形．1拼成的正方形的面积是多�它的边长是多�2在如图 sketch template

在正方形ABCD中EF分别为AB延长线BC边上两点且BE=BF连接CEAF．1如图1求证AF⊥CE2如图2延长AF sketch template

1如图1是边长为1的正方形组成的�格请在其中画出边长为$sqrt{17}$$sqrt{13}$$sqrt{10}$的三角形 sketch template

已知如图1两个大小一样的正方形是中心对称图形找出它们的对称中心如图2两个正方形有一个公共顶点P请画出这两个正方形绕着点P顺时针旋转 sketch template

百度教育 sketch template

如图在每个小正方形的边长均为1的方格纸中有线段AB点AB均在小正方形的顶点上．1在图1的方格纸上画出以AB为一边的直角三角形ABC 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

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