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二年级数学下册六《认识图形》认识直角习题（无答案）北师大版.docx

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1认识直角一、判断题用三角板量一量, 下面哪个角是直角，在（）里画，哪个不是画。二、填空题1. 量一量下面的两个角哪个大哪个小，在( )里标出。2. 下面的图形里有几个直角?3. 在下面的图形里加一条线段，把它分成一个正方形和一个三角形。2加线后的图形中有( )个直角4.下图中( )个直角答案与解析略 3

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