如图，在正三角形abc中，ab=6，d、e分别为ac、bc上的动点， 知乎 Sketch Coloring Page

如图，在正三角形abc中，ab=6，d、e分别为ac、bc上的动点， 知乎 Template

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sketch #5193

anonymous

anonymous
sketch #5193

sketch #1216

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anonymous
sketch #1216

sketch #3742 Homer by Koes Maung

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anonymous
sketch #3742 Homer by Koes Maung

sketch #3083 Great illustration Ali Hänel

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anonymous
sketch #3083 Great illustration Ali Hänel

sketch #4857 Eye by Thu Seba Piñeraa

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anonymous
sketch #4857 Eye by Thu Seba Piñeraa

sketch #1670

Saifa Mahmud
sketch #1670

sketch #380

anonymous

anonymous
sketch #380

sketch #4868 Pokemons! by Ammed Hjb

anonymous

anonymous
sketch #4868 Pokemons! by Ammed Hjb

sketch #5159 Frank Briones Silvia Haynes

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anonymous
sketch #5159 Frank Briones Silvia Haynes

sketch #1041 strawberries

anonymous

anonymous
sketch #1041 strawberries

sketch #215 my mickey mouse

Tom Kelly
sketch #215 my mickey mouse

sketch #3659 Portrait by Mari Falcsik

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anonymous
sketch #3659 Portrait by Mari Falcsik

sketch #4688

anonymous

anonymous
sketch #4688

sketch #3236 Sunset by Aaron Bahary

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sketch #3236 Sunset by Aaron Bahary

sketch #4546 Misaki Mei by Wanis Khelifa

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anonymous
sketch #4546 Misaki Mei by Wanis Khelifa

sketch #4478

Hank Henry Armstrong
sketch #4478

sketch #4362 cow

anonymous

anonymous
sketch #4362 cow

sketch #5125

anonymous

anonymous
sketch #5125

sketch #5214 Crying with a Smile by Bill Kody

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anonymous
sketch #5214 Crying with a Smile by Bill Kody

sketch #3254 derp

anonymous

anonymous
sketch #3254 derp

sketch #4522 Adventure Time by KiNg Buamir

anonymous

anonymous
sketch #4522 Adventure Time by KiNg Buamir

sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

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anonymous
sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

sketch #1447 donara

Donara Smbatyan
sketch #1447 donara

sketch #4012 Owl sketch

anonymous

anonymous
sketch #4012 Owl sketch

sketch #5225 The Friendship by Annabelle Bourget

anonymous

anonymous
sketch #5225 The Friendship by Annabelle Bourget

sketch #68512

anonymous

anonymous
sketch #68512

sketch #4929

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anonymous
sketch #4929

sketch #3590

anonymous

anonymous
sketch #3590

sketch #3535 Mickey by Hakan Usuğ

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anonymous
sketch #3535 Mickey by Hakan Usuğ

sketch #3367 Ichigo by Szymon Broszczak

anonymous

anonymous
sketch #3367 Ichigo by Szymon Broszczak

tomski如图，在正三角形abc中，ab=6，d、e分别为ac、bc上的动点， 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

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，在正三角形ABC中，AB=6，D、E分别为AC、BC上的动点， 知乎 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正三角形ABC的边长为1EFG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在三角形ABC中BDDC=12E为AD的中点若三角形ABC的面积为120平方厘米则阴影部分的面积是多�平方厘米题目和参考 sketch template

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在正三角形ABC中DEF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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

百度教育 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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

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

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在三角形纸片ABC中AB=6BC=8AC=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

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

百度教育 sketch template

在三角形ABC中点O是AC边上一个动点过点O作MN∥BC设MN交∠BCA的平分线于点E交 ABC的外角∠ACD平分线于点E．1求证 sketch template

如图三角形ABC中AB=3AC=6∠BAC=60°D为BC中点E为中线AD的中点．1试用�量AB和AC表示AD2求中线AD sketch template

已知在等边三角形ABC中DE分别为ABAC上的点且BD=AEEB与CD相交于点OEF⊥CD于点F．求证OE=2OF．题目和参考 sketch template

如图所示已知三角形ABC中∠BAC为钝角． 1画出点C到AB的垂线段 2过A点画BC的垂线 3点B到AC的距离是多� sketch template

如图在三角形ABC中BC=8厘米AD=6厘米EF分别为AB和AC的中点．那么三角形EBF的面积是66平方厘米．——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

百度教育 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 ABC中EF分别是ABAC的中点则 ——青夏教育精英家教�—— sketch template

如图三角形ABC中E为AC之中点．BD=2DCAD与BE交于F则三角形BDF的面积四边形DCEF的面积=8787．题目和参考答案 sketch template

连结三角形两边中点的线段叫做三角形的中位线如图�，在 ABC 中，D，E分别是AB，AC的中点，DE 就是 的一条中位线 �们可 sketch template

百度教育 sketch template

百度教育 sketch template

如图在斜棱柱ABC A1B1C1中底面为正三角形侧棱长等于底面边长且侧棱与底面所成的角为60°顶点B1在底面ABC上的射影O恰好是 sketch template

百度教育 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

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