题目：如图，在三角形abc中，点d是ab的中点，∠dac=2∠dca，∠dcb=30度，求∠b的度数知乎 Sketch Coloring Page

题目：如图，在三角形abc中，点d是ab的中点，∠dac=2∠dca，∠dcb=30度，求∠b的度数知乎 Template

Background image: Hide Show

View Larger Image Image Credit: zhihu.com

please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

sketch #894 hmmm

anonymous

anonymous
sketch #894 hmmm

sketch #3680 Infected Mushroom by Rohit Rahul

anonymous

anonymous
sketch #3680 Infected Mushroom by Rohit Rahul

sketch #2989 Little Chibi by Loai Issa

anonymous

anonymous
sketch #2989 Little Chibi by Loai Issa

sketch #3429 Another try of Miku xD

Chelley
sketch #3429 Another try of Miku xD

sketch #5281

anonymous

anonymous
sketch #5281

sketch #3258

anonymous

anonymous
sketch #3258

sketch #3388 Fight Club by Alvaro Velasquez

anonymous

anonymous
sketch #3388 Fight Club by Alvaro Velasquez

sketch #3742 Homer by Koes Maung

anonymous

anonymous
sketch #3742 Homer by Koes Maung

sketch #2023 For variety our own good friends fully understand states; through hard knocks we all our own good friends. priceminister

anonymous

anonymous
sketch #2023 For variety our own good friends fully understand states; through hard knocks we all our own good friends. priceminister

sketch #3608 Skeleton king by Thania Arruda

anonymous

anonymous
sketch #3608 Skeleton king by Thania Arruda

sketch #4310 robot

anonymous

anonymous
sketch #4310 robot

sketch #4976

anonymous

anonymous
sketch #4976

sketch #2808

Luis E. Guvara
sketch #2808

sketch #2699 Girl in shades Ashok Kumar Chaturvedi

Ashok Kumar Chaturvedi
sketch #2699 Girl in shades Ashok Kumar Chaturvedi

sketch #20215 Desert

anonymous

anonymous
sketch #20215 Desert

sketch #21243

anonymous

anonymous
sketch #21243

sketch #3071 Metallica - Kill &#;Em All by Dayana Aleman

anonymous

anonymous
sketch #3071 Metallica - Kill &#;Em All by Dayana Aleman

sketch #5168

anonymous

anonymous
sketch #5168

sketch #4595 Hell Boy by Cristina Love

anonymous

anonymous
sketch #4595 Hell Boy by Cristina Love

sketch #5415

anonymous

anonymous
sketch #5415

sketch #666

Tom Kelly
sketch #666

sketch #4091 Irie

anonymous

anonymous
sketch #4091 Irie

sketch #5285

anonymous

anonymous
sketch #5285

sketch #3950

anonymous

anonymous
sketch #3950

sketch #4393 ant

anonymous

anonymous
sketch #4393 ant

sketch #2976 A girl watches the moon

Laura Agapi Asnicar
sketch #2976 A girl watches the moon

sketch #4965

anonymous

anonymous
sketch #4965

sketch #5085 CM Punk by Luciana Nazar

anonymous

anonymous
sketch #5085 CM Punk by Luciana Nazar

sketch #3339 Sasuke by Jean-Benoit Renaud

anonymous

anonymous
sketch #3339 Sasuke by Jean-Benoit Renaud

sketch #5092 Silvers Rayleigh by Wasim Khan

anonymous

anonymous
sketch #5092 Silvers Rayleigh by Wasim Khan

tomski题目：如图，在三角形abc中，点d是ab的中点，∠dac=2∠dca，∠dcb=30度，求∠b的度数知乎 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

题目：如图，在三角形ABC中，点D是AB的中点，∠DAC=2∠DCA，∠DCB=30度，求∠B的度数 知乎 sketch template

题目：如图，在三角形ABC中，点D是AB的中点，∠DAC=2∠DCA，∠DCB=30度，求∠B的度数 知乎 sketch template

如图在三角形ABC中AB=ACD是BC上一点∠BAD=40°E是AC上一点AD=AE求∠EDC的度数． 题目和参考答案——青夏 sketch template

已知：在三角形ABC中，AB=AC角BAC=20度，D点在AB上且AD=BC求角ACD的度数 知乎 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在 ABC中AB=AC∠A=36°请你设计三种不同的方法将 ABC分割成三个等腰三角形不要求写出画法不要求证明但是要标出所 sketch template

如图1Rt ABC中∠C=90°按题目所给条件及要求将相应的直角三角形分割成若干个全等的并且分别与原三角形相似的三角形．画出图形并简要 sketch template

如图：在三角形ABC中，若AC CD=AB，∠ ADC=70^° ，∠ ACB=80^° ，求∠ B？百度教育 sketch template

题目1问题如图1在Rt ABC中∠BAC＝90°AB＝ACD为BC边上一点不与点BC重合将线段AD绕点A逆时针旋转90 sketch template

已知在三角形abc中知识要点北京爱智康 sketch template

利用三角形中位线求线段长度 知乎 sketch template

三角形“四心”有关性质及证明（内心篇） 知乎 sketch template

如图在三角形ABC中三角形AEO的面积是1三角形ABO的面积是2三角形BOD的面积是3则四边形DCEO的面积是多�——青夏教育精英 sketch template

百度教育 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

三角形重心的性质及其证明 知乎 sketch template

如图在 ABC中BDCE分别为三角形的两条高交于点O �问图11中有个三角形与相似它们是 �连结DE ADE与 ABC是否相似 sketch template

百度教育 sketch template

如图已知正三角形ABC的边长为1EFG分别是ABBCCA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

百度教育 sketch template

百度教育 sketch template

如图在三角形纸片ABC中AB=6BC=8AC=4．沿虚线剪下的涂色部分的三角形与 ABC相似的是ABCD 题目和参考答案——青 sketch template

如图在三角形ABC中AB＞ACDE分别是ABAC上的点 ADE沿线段DE翻折使点A落在边BC上记为A′．若四边形ADA′E是 sketch template

在等边三角形ABC中，点D、E分别在AB、BC边上，连结CD，AE交于点P，且CD=AE，∠ BCD=20°，则∠ APD的度数为百度教育 sketch template

如图在正三角形ABC中DEF分别为各边的中点GHIJ分别为AFADBEDE的中点．将 ABC沿DEEFDF折成三棱锥 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

如图在 ABC中DE∥BC且AD=3DB=2．写出图中的相似三角形并指出其相似比． 题目和参考答案——青夏教育精英家教�—— 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等腰三角形ABC中AB=AC顶角∠A=20°在边AB上取一点D使AD=BC求∠BDC的度数 题目和参考答案——青夏教育精英家教�—— sketch template

如图，在直角三角形ABC中，∠ACB=90°，∠CBA=30°，请你设计三种不同的分法，把 ABC分割成两个三角形，且 ZOL问答 sketch template

如图在 ABC中点DE分别在边ACAB上BD与CE交于点O给出下列四个条件�∠EBO=∠DCO�BE=CD�OB=OC sketch template

百度教育 sketch template

题目如图在等腰直角三角形ABC中∠ABC=90°D为AC边上的中点过D点作DE⊥DF交AB于点E交BC于点F若AE=8FC 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

free web stats