59．如图点p是等边 abc内任意一点过p点分别作各边的平行线 Efmngh请猜测线段efmngh的和是什么当点p 在 Sketch Coloring Page

59．如图点p是等边 abc内任意一点过p点分别作各边的平行线 Efmngh请猜测线段efmngh的和是什么当点p 在 Template

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tomski59．如图点p是等边 abc内任意一点过p点分别作各边的平行线 efmngh请猜测线段efmngh的和是什么当点p coloring

59．如图点P是等边 ABC内任意一点过P点分别作各边的平行线 EFMNGH请猜测线段EFMNGH的和是什么当点P 在 sketch template

如图已知 ABC为等边三角形CF∥AB点P为线段AB上任意一点点P不与AB重合过点P作PE∥BC分别交ACCF于GE．1 sketch template

从一道简单的高数题谈起——点到三角形边及顶点的距离问题知乎 sketch template

题目如图 ABC为等边三角形点P是线段AC上一动点点P不与AC重合连接BP过点A作直线BP的垂线段垂足为点D将线段AD绕 sketch template

如图已知点P是等边三角形ABC内一点PA=4PB=3PC=5求∠APB的度数．题目和参考答案——青夏教育精英家教�—— sketch template

如图1在等边 ABC中点D是边AC的中点点P是线段DC上的动点点P与点C不重合连结BP 将 ABP绕点P按顺时针方�旋转α角0 sketch template

【题目� ABC 是等边三角形，点 C 关于 AB 对称的点为 ′，点 P 是直线 ′ B 上的一个动点，连百度教育 sketch template

如图已知 ABCP为AB上一点连结CP以下各条件中不能判定 ACP∽ ABC的是 A ∠ACP=∠B B ∠APC=∠B sketch template

题目如图点P是等边三角形ABC内一点且PA=3PB=4PC=5若将 APB绕着点B逆时针旋转后得到 CQB则∠APB的度数 sketch template

题目如图已知∠DAC＝90° ABC是等边三角形点P为射线AD上任意一点点P与点A不重合连接CP将线段CP绕点C顺时针旋转 sketch template

如图1在等边 ABC的边AC的延长线上取一点E以CE为边作等边 CDE使它与 ABC位于直线AE的同侧．1同学们对图1进行了热烈的 sketch template

12．如图已知 ABC是等边三角形点DE分别在BCAC上且BD＝CEAD与BE相交于点F1试说明 ABD≌ BCE2 sketch template

如图P是等边三角形ABC内的一点连接PAPBPC以BP为边作∠PBQ=60∘且BQ=BP连接CQ 1观察并猜想AP与CQ sketch template

如图边长为15cm的等边 ABC的顶点BC都在直线l上现将一块直角三角尺DEF按如图位置�放其中DE=EF=12cm∠DEF=90 sketch template

如图点P在等边 ABC的内部且PC=6PA=8PB=10将线段PC绕点C顺时针旋转60°得到PC连接AP则sin∠PAP的 sketch template

如图四边形ABCD内接于⊙OAB是⊙O的直径AC和BD相交于点E且1求证BC=CD2分别延长ABDC交于点P过点A作 sketch template

1如图1所示若P为等边 ABC内一点∠BPC=150° BPP′是等边三角形求证PC2 PB2=PA22如图2所示点P为 sketch template

点P为等边三角形 ABC所在平面内一点且∠ BPC=120°1如图1点P在 ABC外部若BP=2CP=3求AP的长；2P点 sketch template

如图 ABC为等边三角形以边BC为直径的半圆与边ABAC分别交于DF两点过点D作DE⊥AC垂足为点E．1判断DE与⊙O的位置 sketch template

题目已知如图 ABC和 CDE均为等边三角形BCD三点在同一条直线上连接线段BEAD交于点F连接CF1求证∠FBC sketch template

如图已知等边三角形ABC在BC的延长线上取一点E以CE为边作等边三角形DCE连接AEBD．点M是BD的中点点N是AE的中点．1在图 sketch template

1如图1所示在等边 ABC中点D是AB边上的动点以CD为一边�上作等边 EDC连接AE求证AE∥BC中等边 ABC的形状改 sketch template

如图1 ABC是边长为5cm的等边三角形点PQ分别从顶点AB同时出�沿线段ABBC运动且它们的是速度都为1厘米/秒．当点P到达点 sketch template

如图，P是等边三角形ABC内一点，且PA=3，PB=4，PC=5，求∠APB的度数百度教育 sketch template

如图已知AB=10点CD在线段AB上且AC=DB=2P是线段CD上的动点分别以APPB为边在线段AB的同侧作等边 AEP和等边 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四边形ABCD是菱形且∠ABC=60° ABE是等边三角形M为对角线BD上任意一点将BM绕点B逆时针旋转60°得到BN连接EN sketch template

如图等边三角形ABC中AB=5延长BC至点P使CP=3将 ABC绕点B顺时针旋转a角得到 DBE连接DPEP则当 DPE为 sketch template

如图D是等边三角形ABC的边AB上一点且ADDB=12现将 ABC折叠使点C与点D重合折痕为EF点EF分别在AC和BC上且 sketch template

如图， ABC为等边三角形，点P是线段AC上一动点（点P不与A、C重合），连接BP，过点A作直线BP的垂线段，垂足为点D，以AD为边�右作等边 sketch template

如图在边长为2的等边 ABC中AD⊥BC于点D且AD=$sqrt{3}$E为AC中点P为AD上一点则 PEC�长的最小值是 sketch template

已知 ABC是等边三角形以BC为直径的半圆O与边AB相交于点DDE⊥AC垂足为点E．1判断DE与⊙O的位置关系并证明你的结论2 sketch template

如图 ABC为等边三角形⊙O的�长与等边三角形一边长相等⊙O在 ABC的边上作无�动滚动从P点出�沿顺时针方�滚动又回到P点共滚动的 sketch template

如图所示点P是等边三角形ABC内的一点且PA=6PB=8PC=10若将 PAC绕点A逆时针旋转后得到 P′AB则∠APB等于 sketch template

如图1⊙O是等边三角形ABC的外接圆P是⊙O上的一个点．1则∠APC=60°2试证明PA PB=PC3如图2过点A作⊙ sketch template

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