如图所示在三角形abc中d为bc的中点ad和be相交f点已知三角形abc的面积为42平方厘米求三角形bdf的面积．题目和参考答案 Sketch Coloring Page

如图所示在三角形abc中d为bc的中点ad和be相交f点已知三角形abc的面积为42平方厘米求三角形bdf的面积．题目和参考答案 Template

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sketch #5162 Alien by KiNg Buamir

anonymous

anonymous
sketch #5162 Alien by KiNg Buamir

sketch #1652

anonymous

anonymous
sketch #1652

sketch #2862 Grumpy Cat

anonymous

anonymous
sketch #2862 Grumpy Cat

sketch #4965

anonymous

anonymous
sketch #4965

sketch #4086 2lips

anonymous

anonymous
sketch #4086 2lips

sketch #4695

anonymous

anonymous
sketch #4695

sketch #4273

anonymous

anonymous
sketch #4273

sketch #4710

anonymous

anonymous
sketch #4710

sketch #4901 Adventure Time by Louisette Alain

anonymous

anonymous
sketch #4901 Adventure Time by Louisette Alain

sketch #5069 Mad Hatter by Ahmed Mostafa

anonymous

anonymous
sketch #5069 Mad Hatter by Ahmed Mostafa

sketch #113

Rachel Roe
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sketch #4995

anonymous

anonymous
sketch #4995

sketch #1551 donara

Donara Smbatyan
sketch #1551 donara

sketch #2950 Miss Fortune from League of Legends by Araceli GM

anonymous

anonymous
sketch #2950 Miss Fortune from League of Legends by Araceli GM

sketch #5136

anonymous

anonymous
sketch #5136

sketch #542 life

anonymous

anonymous
sketch #542 life

sketch #5197 Rihanna by Ben Hall

anonymous

anonymous
sketch #5197 Rihanna by Ben Hall

sketch #3483 Ginger

Sarah Nila
sketch #3483 Ginger

sketch #2926 Power Puff Girls by Sylvie Rieux

anonymous

anonymous
sketch #2926 Power Puff Girls by Sylvie Rieux

sketch #5128 Italo Italo Abreu Jack Supple

anonymous

anonymous
sketch #5128 Italo Italo Abreu Jack Supple

sketch #4831

anonymous

anonymous
sketch #4831

sketch #2735

Jorge Valero
sketch #2735

sketch #5208 Alf by David Rossien

anonymous

anonymous
sketch #5208 Alf by David Rossien

sketch #2618

sketchmaster
sketch #2618

sketch #2072

anonymous

anonymous
sketch #2072

sketch #270

anonymous

anonymous
sketch #270

sketch #2640 Marge by Mirnes Sinanovic

Mirnes Sinanovic
sketch #2640 Marge by Mirnes Sinanovic

sketch #4446 EDDIE by يآآسر محمد

anonymous

anonymous
sketch #4446 EDDIE by يآآسر محمد

sketch #3138 Papa Smurf by Courtney Spragg

anonymous

anonymous
sketch #3138 Papa Smurf by Courtney Spragg

sketch #4778

anonymous

anonymous
sketch #4778

tomski如图所示在三角形abc中d为bc的中点ad和be相交f点已知三角形abc的面积为42平方厘米求三角形bdf的面积．题目和参考答案 coloring

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

三角形中线的定理？知乎 sketch template

如图，在三角形 ABC 中， D 是 BC 的中点， E 、 F AC 的三等分点。已知三角形 的面积是 108 平方厘米。求三角 sketch template

题目如图所示边长为2的等边三角形ABC中D点在边BC上运动不与BC重合点E在边AB的延长线上点F在边AC的延长线上AD sketch template

如图， ABC为等边三角形，以BC为斜边�下作等腰直角三角形BDC，连接AD交BC于点O．E为线段AC上一动点（不与A，C重合），连接BE sketch template

如图所示在等边 ABC中点DE分别在边BCAB上且BD=AEAD与CE交于点F则∠DFC的度数为 A．60°B．45°C sketch template

如图所示在三角形ABC中D为BC的中点AD和BE相交F点已知三角形ABC的面积为42平方厘米求三角形BDF的面积． 题目和参考答案 sketch template

已知在三角形abc中知识要点北京爱智康 sketch template

如图在三角形ABC中D为 BC的中点 AF=2BFCE=3AE连接CF交 DE于 P点求EPDP的值． 题目和参考答案——青夏教育 sketch template

如图所示在 ABC中D是BC边上一点∠1=∠2 ∠3=∠4∠BAC=63° 求∠DAC的度数——青夏教育精英家教�—— sketch template

如图所示，已知边长为4的正三角形ABC中，E，F分别为BC和AC的中点，PA=2，且PA⊥平面ABC，设Q是CE的中点（1）求证：AE∥平面 sketch template

如图， ABC和 DEF是两个全等的等腰直角三角形，∠ BAC=∠ EDF=90°， DEF的顶点E与 ABC的斜边BC的中点重合，将 DEF sketch template

百度教育 sketch template

百度教育 sketch template

如图所示，边长为2的等边三角形中，D点在边上运动（不与B、C重合），点E在边的延长线上，点F在边的延长线上，． 点D在边上从B至C的运动过程 sketch template

如图所示三角形abc是边长为1的正三角形 三角形bdc是顶角为120度的等腰三角形 以d为顶点做一个60是度的角m 百度知道 sketch template

如图所示三角形ABC中D是AB边的三等分点E是AC边的四等分点已知三角形A DE的面积是1平方厘米．求三角形ABC的面积是多�平方 sketch template

百度教育 sketch template

初中数学专题相似三角形中的基本模型干货建议收藏知乎 sketch template

如图在正方形ABCD中EC=2BE三角形 BOC的面积是3平方米求阴影部分的面积． 题目和参考答案——青夏教育精英家教�—— sketch template

15．如图所示已知等腰直角三角形ABC中∠ACB=90°直线L经过点C AD ⊥LBE⊥L垂足分别为DE． 1证明 ACD sketch template

9．三角形纸片ABC中∠A=60°∠B=80°将纸片的一角折叠使点C 落在 ABC内如图3所示∠1=10°则∠2= ．——青夏教育 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

如图所示三角形ABC被线段DE分成三角形BDE和四边形ACDE两部分问三角形BDE的面积是四边形ACDE面积的几分之几 题目和参考答案 sketch template

如图等边三角形ABC的边长为6A、B、A1三点在一条直线上且 ABC≌ A1BC1若D为线段BC1上一动点则AD CD的最小值是 sketch template

如图在三角形ABC中BE=EF=FCED=2DA求阴影部分的面积是三角形ABC面积的几分之几 题目和参考答案——青夏教育精英家教�—— sketch template

如图所示在三角形ABC中∠ABC=45°CD⊥AB与点DBE平分∠ABC 且BE⊥AC于点E与CD相交于点FH是BC边的中点 sketch template

如图已知正三角形ABC的边长为1EFG分别是ABBCCA上的点且AE=BF=CG设 EFG的面积为yAE的长为x则y关于x sketch template

如图在等边 ABC中D为AC的中点E是AB上一点且则图中和 ADE相似的三角形有A．1个 B．2个 C．3个D．4个——青夏教育精英 sketch template

如图，Rt ABC中，∠C＝90°，AC＝BC，点D、E分别是边AB、AC上的点，把 ADE沿DE折叠，点A恰好落在BC上的点F处，若点F为 sketch template

百度教育 sketch template

请问怎么证明O为外心，充分必要条件知乎 sketch template

如图所示在Rt ABC中AD平分∠BAC交BC于DCH⊥AB于H交AD于FDE⊥AB垂足为E求证四边形CFDE是菱形——青夏 sketch template

三角形ABC在正方形�格中的位置如图所示 �格中每个小方格的边长为1个单位长度请根据下列提示作图出卷� sketch template

如图在正三角形ABC中DEF分别为各边的中点GHIJ分别为AFADBEDE的中点．将 ABC沿DEEFDF折成三棱锥 sketch template

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