8．如图所示o是等边三角形abc的中心d是三角形中的任意一点如果作矢量dadbdc分别表示三个力三个力的方�如图中箭头所示则这三 Sketch Coloring Page

8．如图所示o是等边三角形abc的中心d是三角形中的任意一点如果作矢量dadbdc分别表示三个力三个力的方�如图中箭头所示则这三 Template

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tomski8．如图所示o是等边三角形abc的中心d是三角形中的任意一点如果作矢量dadbdc分别表示三个力三个力的方�如图中箭头所示则这三 coloring

如图所示在等边 ABC中点DE分别在边BCAB上且BD=AEAD与CE交于点F则∠DFC的度数为 A．60°B．45°C sketch template

如图， ABC是等边三角形，它的面积为1，延长BC至D，使BD=2BC，延长CA至E，使CE=3CA，延长AB至F，使AF=4AB，求 DEF sketch template

如图所示 ABC是等边三角形D点是AC的中点延长BC到E使CE=CD 1用尺规作图的方法过D点作DM⊥BE 垂足是M不 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

8．如图所示O是等边三角形ABC的中心D是三角形中的任意一点如果作矢量DADBDC分别表示三个力三个力的方�如图中箭头所示则这三 sketch template

等边三角形八等分图片千图� sketch template

已知 ABC为等边三角形，边长为8，点D，E分别是边AB，BC上的动点，以DE为边作等边三角形DEF1如图1，若点F落在边AC上�求证 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DDE⊥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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

如图3 ABC是等边三角形在ACBC边上各取一点PQ使AP=CQ AQ BP交于点O则∠QOB= ．——青夏教育精英家教�—— 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

百度教育 sketch template

如图等边三角形ABC内接于圆D为上一点则图中 等于60°的角有 A3个 B4个 C5个 D6个——青夏教育精英家教�—— sketch template

如图已知 ABC是等边三角形以AB为直径作⊙O交AC边于点D交BC边于点E作DF⊥BC于点F．1求证DF是⊙O的切线2若 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

百度教育 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

如图所示P是等边 ABC内部一点∠APB∠BPC∠CPA的大小之比是5∶6∶7求以PAPBPC的长为边的三角形的三个角的大小之比 sketch template

如图 ABC是等边三角形点O在边AC上以点O为圆心以OC为半径的圆分别与ACBC相交于点DE若OC=1则$widehat sketch template

如图⊿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≌⊿BCE 2⊿AEF sketch template

10．如图所示已知 ABC和 DCE均是等边三角形点BCE在同一条直线上AE与BD交于点OAE与CD交于点GAC与BD交于点F sketch template

如图所示，边长为2的等边三角形中，D点在边上运动（不与B、C重合），点E在边的延长线上，点F在边的延长线上，．点D在边上从B至C的运动过程 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D是等边三角形ABC外一点若BD=8CD=6连接AD则AD的最大值与最小值的差为 12 百度教育 sketch template

已知如图等边 ABC的边长是4D是边BC上的一个动点连接AD作AD的垂直平分线分别与边ABAC交于点EF．1求 BDE和 sketch template

如图等边三角形ABC的边长为6cm动点P从点A出�以2cm/秒的速度沿AC方��终点C运动同时动点Q从点C出�以1cm/秒的速度沿CB sketch template

如图所示已知等边三角形ABC的边长为1按图中所示的规律用2011个这样的等边三角形镶嵌而成的四边形的�长是 ．题目和参考答案——青夏 sketch template

如图所示直线AD和BC相交于OAB∥CD∠AOC=95°∠B=50° ∠A=A50B55C40D45——青夏教育精英 sketch template

10．如图所示已知 ABC和 DCE均是等边三角形点BCE在同一条直线上AE与BD交于点OAE与CD交于点GAC与BD交于点F sketch template

如图所示已知 ABC和 DCE都是等边三角形图中的三角形可以通过旋转相互得到的是A ACE和 BCDB ABF和 CFDC ABC 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

37．如图等边 ABC的面积为S ⊙O是它的外接圆点P是弧BC的中点1试判断过点C所作⊙O的切线与直线AB是否相交并证明你的结论 sketch template

百度教育 sketch template

用三个全等的直角三角形 AEF BDF和 CDE拼成如图所示的大的正三角形已知大的正三角形的边长是3则下列叙述中正确的是 ．�∠A=60 sketch template

如图1 ABC是边长为6的等边三角形点DE分别是边ABAC的中点将 ADE绕点A旋转BD与CE所在的直线交于点F．所示将 ADE sketch template

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