如图 abc中bdce是 abc的两条高点fm分别是debc的中点．求证fm⊥de．题目和参考答案——青夏教育精英家教�—— Sketch Coloring Page

如图 abc中bdce是 abc的两条高点fm分别是debc的中点．求证fm⊥de．题目和参考答案——青夏教育精英家教�—— Template

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sketch #5225 The Friendship by Annabelle Bourget

anonymous

anonymous
sketch #5225 The Friendship by Annabelle Bourget

sketch #3092

anonymous

anonymous
sketch #3092

sketch #3939

anonymous

anonymous
sketch #3939

sketch #5311

anonymous

anonymous
sketch #5311

sketch #3755 Panda by Roberto Castro Colimil

anonymous

anonymous
sketch #3755 Panda by Roberto Castro Colimil

sketch #3052

anonymous

anonymous
sketch #3052

sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain

anonymous

anonymous
sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain

sketch #5264

anonymous

anonymous
sketch #5264

sketch #3217

anonymous

anonymous
sketch #3217

sketch #3473 Finn by Luana Santos

anonymous

anonymous
sketch #3473 Finn by Luana Santos

sketch #1536 Dark Night

anonymous

anonymous
sketch #1536 Dark Night

sketch #2664

Jorge Valero
sketch #2664

sketch #4385

anonymous

anonymous
sketch #4385

sketch #3157 umpa lumpa

anonymous

anonymous
sketch #3157 umpa lumpa

sketch #5316

anonymous

anonymous
sketch #5316

sketch #4742

anonymous

anonymous
sketch #4742

sketch #132

anonymous

anonymous
sketch #132

sketch #1447 donara

Donara Smbatyan
sketch #1447 donara

sketch #3908 Rawr! by Timothy Palfreyman

anonymous

anonymous
sketch #3908 Rawr! by Timothy Palfreyman

sketch #3264 Lisa by Shaban Khan

anonymous

anonymous
sketch #3264 Lisa by Shaban Khan

sketch #5297 Journey by Dmitry Sidorenko

anonymous

anonymous
sketch #5297 Journey by Dmitry Sidorenko

sketch #1923 12

anonymous

anonymous
sketch #1923 12

sketch #3398 Sharingan by حيرتني بصمتها

anonymous

anonymous
sketch #3398 Sharingan by حيرتني بصمتها

sketch #1448 donara

Donara Smbatyan
sketch #1448 donara

sketch #1446

anonymous

anonymous
sketch #1446

sketch #4972

anonymous

anonymous
sketch #4972

sketch #4176 Eye by Jawad Kallou

anonymous

anonymous
sketch #4176 Eye by Jawad Kallou

sketch #2351

anonymous

anonymous
sketch #2351

sketch #1221 səhər
abbasova
gözəi
qız
hamı
məni çox
seve
anam da
çox
sevir

anonymous

anonymous
sketch #1221 səhər abbasova gözəi qız hamı məni çox seve anam da çox sevir

sketch #21243

anonymous

anonymous
sketch #21243

tomski如图 abc中bdce是 abc的两条高点fm分别是debc的中点．求证fm⊥de． coloring

醬爆盤點君 如圖，三角形ABC中，AB是AD的5倍，AC是AE的3倍，三角形ADE的面積為1，求三角形ABC的面積求面積數學思維 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

25．如图在 ABC中 DE分别是ACAB上的点 BD与CE交于点O 给出下列三个条件�∠EBO＝∠DCO�∠BEO＝∠CDO 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在等要直角三角形ABC中O是斜边AC的中点P是斜边AC上的一个动点D为BC上的一点且PB=PD垂足为点E 1求证PE sketch template

在 ABC中，D为AB上的中点，E为线段AC上的点，且DE = 1/2BC，什么时候有两条DE？知乎 sketch template

如图所示，在 ABC中BD，CE是两条高，求证：B，C，D，E四点在同一个圆上百度教育 sketch template

14．如图点DE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

整理趋势：abc结构3段调整知乎 sketch template

心理百� 情绪ABC理论&合理情绪疗法听心教育心理� sketch template

题目如图在直线l上�放着三个三角形 ABC HFG DCE已知BC=CEFG分别是BCCE的中点FM∥AC∥HG∥DE 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AE⊥BCBF⊥ACCD⊥AB则 ABC中AC边上的高是哪条垂线段 AAE BCD CBF DAF——青夏教育精英家教�—— sketch template

三角形“四心”有关性质及证明（内心篇）知乎 sketch template

题目如图在平面直角坐标系中菱形ABCD在第一象限内边BC与x轴平行AB两点的纵坐标分别为42反比例函数y＝x＞0的图象 sketch template

如图在ABCD中已知对角线ACBD相交于点O．1若∠ABC=120°求∠ADC和∠BCD的度数2若BC=7cmBD sketch template

如图在 ABC中D是BC边的中点E是AD上一点BE=ACBE的延长线交AC于F求证∠AEF=∠EAF．题目和参考答案——青夏 sketch template

如图 ABC中AB=AC．∠A=36°AB的中垂线DE交AC于D交AB于E下述结论AD=BD=BC3 BDC的�长等于AB sketch template

15．如图Rt ABC中∠C=90°∠ABC=30°AB=6．点D在AB边上点E是BC边上一点不与点BC重合且DA=DE则 sketch template

如图 ABC中BD是∠ABC的平分线DE∥AB交BC于E已知EC＝3BE＝2则AB等于 A B C6 D4——青夏教育精英 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 ABC中BDCE是 ABC的两条高点FM分别是DEBC的中点．求证FM⊥DE．题目和参考答案——青夏教育精英家教�—— sketch template

如图，在 ABC中，∠ABC=90°，AB=BC，三角形的顶点在相互平行的三条直线l1，l2，l3上，且l1，l2之间的距离为2，l2，l3 sketch template

15．已知：如图，在 ABC中，AB=AC，BD是AC边上的高，点P是边BC上的任意一点，PE⊥AB，PF⊥AC，垂足分别为E、F．（1 sketch template

如图在 ABC中AB=ACADCE是 ABC的两条中线P是AD上一个动点则下列线段的长度等于BP EP最小值的是 A．BCB sketch template

如图，在 ABC中，∠ABC＝90°，AB＝BC，三角形的顶点在相互平行的三条直线l1，l2，l3上，且l1，l2的距离为2，l2，l3的距离 sketch template

如图已知在 ABC中AD是BC边上的中线E是AD上一点且BE=AC延长BE交AC于点F。求证AF=EF。百度教育 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

如图在 ABC中CE是中线CD是角平分线AF⊥CD交CD延长线于点FAC=7BC=4则EF的长为 A 15 B 2 sketch template

如图已知 ABC的内角∠A=α°分别作内角∠ABC与外角∠ACD的平分线两条平分线交于点A1得∠A1∠A1BC和∠A1CD的平分线交 sketch template

15．三棱锥P ABC的四个顶点在同一球面上若PA⊥底面ABC底面ABC是直角三角形PA＝2AC＝BC＝1则此球的表面积为——青夏 sketch template

如图等边三角形ABC的两条角平分线BD和CE交于I则图中全等的三角形有对．题目和参考答案——青夏教育精英家教�—— sketch template

百度教育 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所示， ABC是等腰直角三角形，∠ACB=90°，AD是BC边上的中线，过C作AD的垂线，交AB于点E，交AD于点F．求证：（1）∠ADC sketch template

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