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下列命题中真命题的个数是①等腰三角形的角平分线,中线和高互相重合②等腰三角一腰上
下列命题中真命题的个数是①等腰三角形的角平分线,中线和高互相重合②等腰三角一腰上
发布时间:2020-07-26 15:22:49
下列命题中真命题的个数是①等腰三角形的角平分线,中线和高互相重合②等腰三角一腰上的高与底边的夹角等于顶角的一半③等腰三角形顶角的外角的平分线平行于底边④等腰三角形两腰上的中线相等A.1个B.2个C.3个D.4个
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C
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