题目内容
在△ABC与△A’B’C’中,有下列条件:
①
;⑵
③∠A=∠
;④∠C=∠
如果从中任取两个条件组成一组,那么能判断△ABC∽△A’B’C’的共有( )组。
①
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如果从中任取两个条件组成一组,那么能判断△ABC∽△A’B’C’的共有( )组。
A.1 | B.2 | C.3 | D.4 |
C
试题分析:如果从中任取两个条件组成一组;选①
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根据三角形的内角和定理,则
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点评:本题考查相似三角形,掌握相似三角形的判定方法是解答本题的关键,要求学生会判定两个三角形相似
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