如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由

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如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由
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如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由
如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由

如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由
∠EGH =∠B+∠BFG=∠ADE+∠BFG>∠ADE
∠EGH>∠ADE

2分之1角EGH=角ADE

android mp3 player From the profit model of view, two types of cell phones and operators have taken a cooperative approach, but the attitude of both subtle difference. Clearly, Apple and operators ...

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android mp3 player From the profit model of view, two types of cell phones and operators have taken a cooperative approach, but the attitude of both subtle difference. Clearly, Apple and operators in the cooperation model, Apple has always been the stronger party, although operators can make use of iPhone for profit, but it is passive. Therefore, many operators in cooperation with Apple always difficult to talk about a breakthrough.
In cooperation with Google, the operators appear to be more active. Since the same opening in the Google phone alliance, as well as China Mobile, T-Mobile operators such as shadows, which makes Google the penetration of operators will also be reflected soon. According to introduction, thanks to the openness of Android, operators will be able to easily top the platform development.android mp3 player
At a deeper level of the core features of view, Google's Android platform is completely open platform, and Apple's MACOS a relatively closed platform. But Apple has also accelerated the pace of its development, "soft" competition has been very clear trend.
Microsoft stake
android mp3 player
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如图,再三角形ABC中,DE平行BC,F是AB上的一点,FE的延长线交BC的延长线于点G,则角EGH与角ADE的大小有什么关系?请说明理由 △ABC和△DEF中,∠C=∠F=90°,AB:DE=BC:EF,求证两三角形相似如题 如图,在三角形ABC中,DE平行FG平行BC,GI平行EF平行AB,若三角形ADE,EFG,GIC的面积分别为20cm方,45,80,则三角形abc的面积是大三角形ABC的面积为（ 已知,如图,在△ABC中,点D,E,F分别在边AB,AC,BC上,DE平行BC,EF平行AB,且F是BC的中点,求证:DE=CF 已知如图在三角形ABC中,DE是中位线,EF平行AB,EF交BC于点F,求证F是BC中点 如图:在三角形ABC中,D.F是AB的三等分点,DE平行于FG平行于BC.若三角形ADE的面积为S 如图,△ABC中,AB=AC,DE⊥BC,DE交AC于F,DE交BA延长线于E,△ABC中,AB=AC,DE⊥BC,DE交AC于F,DE交BA延长线于E,G为EF中点.求证：AG平行与BC 在三角形ABC中,DE平行于AC,AD比DB等于2比1,F为AC上任意一点三角形DEF的面积为二倍根号二,则三角形ABC的面积为?图是大三角形ABC中套一个小三角形DEF,D在AB边上,F在AC边上,E在BC边上.不知你是否明白 如图,在Rt三角形ABC中,E是斜边AB的中点,CD平行与AB,CD=CE,DE与BC相交于点F,求证:DE⊥与AC如图,在Rt三角形ABC中,E是斜边AB的中点,CD平行与AB,CD=CE,DE与BC相交于点F,求证：DE⊥与AC 如图,在三角形ABC中,角ACB等于九十度,BC的垂直平分线DE交BC于D,交AB 于E,F在DE如图,在三角形ABC中,角ACB等于九十度,BC的垂直平分线DE交BC于D,交AB 于E,F在DE上,并且AF等于CE. 1,求证四边形ACEF是平行四 如图,△ABC中,∠C=90,CM⊥AB于M,AT平行∠BAC交CM于D,交BC于T,过D作DE平行AB交BC于E,求证CT=BE不好意思，我才一级，不能画图反正是一个大三角形然后里面有三根线，两根是分别垂直于AC AB的，还有一 再三角形ABC,AB=AC,AD为ABC的角平分线,DE垂直AB,DF垂直AC,垂足为E,F则角BDE=CDF吗 如图,△ABC中,D.E分别是BC,AC的中点且DE平行AB,BF平分∠ABC,交DE与点F,若BC＝6,则DF的长是? 已知,如图,△ABC中,DE平行BC,若S△ABC=S,AE:EC=2:3,过点E作EF平行AB交BC于F,求平行四边形BFED的面积 已知：如图,△ABC中,DE平行BC,若S△ABC=5,AE/EC=k,过点E做EF平行AB交BC与F,求平行四边形BFED的面积那是多少? 如图在三角形abc中,bd平方角abc,de平行bc交ab于点e,ef平行ac交bc于点f,说明be等于cf. 谁可以帮我 四边形的已知,如图,在三角形ABC中,BD是∠abc的平分线,DE平行BC交AB于E,EF平行AC交BC于F,则BE=FC,为什么? 已知在3角形ABC中,DE平行BC,AD/DB=3/2,若ABC面积=S,ADE面积多少?