7．如图5点def分别是abbcca边的中点则图中的平行四边形一共有 3个 d4个——青夏教育精英家教�—— Sketch Coloring Page

7．如图5点def分别是abbcca边的中点则图中的平行四边形一共有 3个 d4个——青夏教育精英家教�—— Template

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tomski7．如图5点def分别是abbcca边的中点则图中的平行四边形一共有 3个 d4个——青夏教育精英家教�—— coloring

7．如图5点DEF分别是ABBCCA边的中点则图中的平行四边形一共有 3个 D4个——青夏教育精英家教�—— sketch template

7．如图5点DEF分别是ABBCCA边的中点则图中的平行四边形一共有 3个 D4个——青夏教育精英家教�—— sketch template

已知如图在 AOB中点C在OA上点ED在OB上且AB=ADCD∥ABCE∥AD问 CDE是否为等腰三角形为什么题目和 sketch template

如图在等边 ABC 中DEF分别为ABBCCA上一点且AD=BE=CF若每三个三角形两两全等为一组则图中全等的三角形组数为 sketch template

如图点DE分别在 ABC的边上ABAC上且若DE=3BC=6AB=8则AE的长为——青夏教育精英家教�—— 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BCCD和DA边上靠�ABCD的n等分点连接AFBGCH sketch template

已知在 ABC中内切圆I和边BCCAAB分别相切于点DEF．1若∠A=60°求∠FDE的度数2若∠A=130°求∠ sketch template

如图1图2 ABC是等边三角形DE分别是ABBC边上的两个动点始终保持BD=CE．1当点DE运动到如图1所示的位置时求证 sketch template

14．如图点DEF分别是 ABC三边上的中点．若 ABC 的面积为12则 DEF的面积为．——青夏教育精英家教�—— sketch template

如图，在三角形ABC中，D、E、F分别是BC、CA、AB上的点，AD、BE、CF相交于一点O，这样三角形ABC被分成6个三角形，其中4个三角形 sketch template

题目1如图1在四边形ABCD中FE分别是BCAD的中点连结EF并延长分别与BACD的延长线交于点MN则∠BME=∠ sketch template

如图点DEF分别在等边三角形ABC的边ABBCCA的延长线上且BD=CE=AF说明 DEF为等边三角形．题目和参考答案——青夏 sketch template

题目如图已知正方形ABCD的边长为8点E是正方形内部一点连接BECE且∠ABE＝∠BCE点P是AB边上一动点连接 PDPE sketch template

如图�，已知 ABC的内切圆⊙O与AB、BC、AC分别相切于点D、E、F，且EF=DE（1）判断 ABC的形状，并证明你的结论；（2 sketch template

如图等边三角形ABC中DE分别为ABBC边上的两动点且总使AD=BEAE与CD交于点FAG⊥CD于点G则FGAF= A sketch template

如图在平行四边形ABCD中AB=6BC=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等边三角形ABC中点DEF分别为边ABACBC的中点M为直线BC动点 DMN为等边三角形1如图1当点M在点B左侧时 sketch template

如图在 ABC中CE是中线CD是角平分线AF⊥CD交CD延长线于点FAC=7BC=4则EF的长为 A 15 B 2 sketch template

题目如图�所示将直尺�放在三角板上使直尺与三角板的边分别交于点DEFG已知∠CGD=42°1求∠CEF的度数2将直尺 sketch template

5．如图⊿ABC是等边三角形点DE分别在BCAC上且BD=CEAD与BE相交于点F 1试说明⊿ABD≌⊿BCE 2⊿ sketch template

如图等边 ABC中点D在AB上点E在BC上AD=BE．AE和CD相交于点P求证∠CPE=60°．题目和参考答案——青夏教育精英家教�—— sketch template

如图在 ABC中∠C=90°AC=BC点D为AB的中点点EF分别为ACBC边上的动点且CE=BF当点EF分别在边ACBC sketch template

百度教育 sketch template

2．如图线段AB上有CDEF四个点则图中共有 条线段．提示方法一可先把点A作为一个端点点CDEFB分别为另一个 sketch template

如图1在 ABC中AC=BC∠ACB=90°点D为AB边中点以点D为顶点作∠PDQ=90°DPDQ分别交直线ACBC于EF sketch template

如图点DE分别在 ABC的边上ABAC上且若DE=3BC=6AB=8则AE的长为——青夏教育精英家教�—— sketch template

已知如图在 ABC中点DEF分别在三边上E是AC的中点BD=2DCADBECF交于一点GS BGD=16S AGE=6 sketch template

如图四边形ABCD是平行四边形．O是对角线AC的中点过点O的直线EF分别交ABDC于点EF与CBAD的延长线分别交于点GH sketch template

如图等边 ABC中DE分别为ABBC边的延长线上的点且BD=CEDC的延长线交AE于点FAG⊥CD于点G．1求证 ACE≌ sketch template

如图在 ABC中D是BC的中点DE⊥ABDF⊥AC垂足分别是EFBE=CF 1图中有几对全等的三角形请一一列出 2 sketch template

题目如图在Rt ABC中AB=6 ∠BAC=30 ∠BAC的平分线交BC于点DEF分别是线段AD和AB上的动点则BE EF的 sketch template

如图等边 ABC中DE分别为ABBC边的延长线上的点且BD=CEDC的延长线交AE于点FAG⊥CD于点G．1求证 ACE≌ sketch template

如图所示已知Rt ABC中∠B=90°AB=3BC=4DEF分别是三边ABBCCA上的点则DE EF FD的最小值为 sketch template

题目如图已知中D是AC边上一点且联结BD点EF分别是BCAC上两点AE与BD相交于点G．1求证BD平分2 sketch template

如图在 ABC中PQ分别是BCAC上的点作PR⊥ABPS⊥AC垂足分别为RS若AQ＝PQPR＝PS则这四个结论中正确的有 sketch template

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