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 #2423

anonymous

anonymous
sketch #2423

sketch #2810 Lennon by El Harouati Nassera

El Harouati Nassera
sketch #2810 Lennon by El Harouati Nassera

sketch #5237 Gotye by Jhonatan Soares

anonymous

anonymous
sketch #5237 Gotye by Jhonatan Soares

sketch #3701 amazing Skull

anonymous

anonymous
sketch #3701 amazing Skull

sketch #3273

anonymous

anonymous
sketch #3273

sketch #4702

anonymous

anonymous
sketch #4702

sketch #2206

anonymous

anonymous
sketch #2206

sketch #1118 easy zombie

anonymous

anonymous
sketch #1118 easy zombie

sketch #4896

anonymous

anonymous
sketch #4896

sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

anonymous

anonymous
sketch #3425 &#;Tonari no Kaibutsu-kun&#; by Betty Marie Melzer

sketch #819

Laura Agapi Asnicar
sketch #819

sketch #3439 Aralé by Malyi Link

anonymous

anonymous
sketch #3439 Aralé by Malyi Link

sketch #5435

anonymous

anonymous
sketch #5435

sketch #303

anonymous

anonymous
sketch #303

sketch #3052

anonymous

anonymous
sketch #3052

sketch #4549

anonymous

anonymous
sketch #4549

sketch #3083 Great illustration Ali Hänel

anonymous

anonymous
sketch #3083 Great illustration Ali Hänel

sketch #2904 Pinky and the Brain by Tim Poole

anonymous

anonymous
sketch #2904 Pinky and the Brain by Tim Poole

sketch #5133 Jiraiya by Saiful Farizam

anonymous

anonymous
sketch #5133 Jiraiya by Saiful Farizam

sketch #3448 Treba mi bolji

anonymous

anonymous
sketch #3448 Treba mi bolji "mish " ;)

sketch #1972 Boogaloo @Memphis

anonymous

anonymous
sketch #1972 Boogaloo @Memphis

sketch #2777 Ralph & Vanellope by Alexander Volodimirovich Danilchenko

Alexander Volodimirovich Danilchenko
sketch #2777 Ralph & Vanellope by Alexander Volodimirovich Danilchenko

sketch #15

Tom Kelly
sketch #15

sketch #5311

anonymous

anonymous
sketch #5311

sketch #3608 Skeleton king by Thania Arruda

anonymous

anonymous
sketch #3608 Skeleton king by Thania Arruda

sketch #5062

anonymous

anonymous
sketch #5062

sketch #2197

anonymous

anonymous
sketch #2197

sketch #2582

anonymous

anonymous
sketch #2582

sketch #3662 Angel by Alexander Volodimirovich Danilchenko

anonymous

anonymous
sketch #3662 Angel by Alexander Volodimirovich Danilchenko

sketch #4821 Johnny M. by Z Ionut Ady

anonymous

anonymous
sketch #4821 Johnny M. by Z Ionut Ady

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

中考数学等腰直角三角形“套路深”，竟有这么多“基本图形”！ 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

百度教育 sketch template

这道解三角形的题目有什么简便方法？ 知乎 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，若AC CD=AB，∠ ADC=70^° ，∠ ACB=80^° ，求∠ B？百度教育 sketch template

三角形“四心”有关性质及证明（内心篇） 知乎 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，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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

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

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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 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

题目如图AD为 ABC的中线BE为三角形ABD中线． 1在 BED中作BD边上的高EF2若 ABC的面积为40BD=5求 sketch template

20． 如图，三角形ABC中，BD平分∠ABC，AD垂直于BD，三角形BCD的面积为45，三角形ADC的面积为20，则三角形ABD的面积等于 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

题目如图�在等边三角形ABC中．D是AB边上的动点以CD为一边�上作等边三角形EDC．连接AE1求证 DBC≌ EAC2 sketch template

百度教育 sketch template

百度教育 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

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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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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 ABC中，AB=4，AC=3，BC=5，DE是BC的垂直平分线，DE分别交BC、AB于点D、E．1求证： ABC为直角三角形． 2求 sketch template

如图在直角三角形ABC中∠BAC=90°将 ABC沿直线BC�右平移得到 DEF连结ADAE则下列结论中不成立的是 A．AD∥ 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

如图中三角形ABC的面积是平行四边形DBCE面积的 A．一半 B．2倍 C．相等 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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

free web stats