有一个等腰三角形abc，ab=ac；在底边bc上任取一点d（点d不与b、c重合）， 509628 中学数学数学天地 33iq Sketch Coloring Page

有一个等腰三角形abc，ab=ac；在底边bc上任取一点d（点d不与b、c重合）， 509628 中学数学数学天地 33iq Template

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tomski有一个等腰三角形abc，ab=ac；在底边bc上任取一点d（点d不与b、c重合）， 509628 中学数学 coloring

已知：在三角形ABC中，AB=AC角BAC=20度，D点在AB上且AD=BC求角ACD的度数知乎 sketch template

有一个等腰三角形ABC，AB=AC；在底边BC上任取一点D（点D不与B、C重合）， 509628 中学数学 数学天地 33IQ sketch template

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已知：在三角形ABC中，AB=AC角BAC=20度，D点在AB上且AD=BC求角ACD的度数知乎 sketch template

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等腰三角形 等腰三角形图片下载花瓣� sketch template

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三角形ABC是等腰直角三角形角BAC=90°点PQ分贝时ABAC上的动点却满足BP=AQD是BC的中点百度知道 sketch template

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15．如图所示已知等腰直角三角形ABC中∠ACB=90°直线L经过点C AD ⊥LBE⊥L垂足分别为DE． 1证明 ACD sketch template

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�们知道含有36°的等腰三角形是特殊的三角形通常把有一个内角等于36°的三角形称为“黄�三角形 ．1如图12在 ABC中已知 sketch template

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如图所示，已知三角形ABC为等腰直角三角形，且EC垂直AC于C，AE=BF，判断AE和BF的位置关系。百度知道 sketch template

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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

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