《小学二年级数学下册第七单元试卷》及答案北师大版
1.下面的图形中哪些是角,哪些不是角?(1)(2)(3)(4)(5)答案:135是角,其余的都不是。2.数一数。请你数一数,下面的图形里各有几个角?(1)(2)(3)答案:3463.数学医生:这个角是锐角(1)对(2)不对答案:不对4.直角比钝角:(1)大(2)小(3)一样大答案:小5.钝角比锐角:(1)大(2)小(3)一样大答案:大6.三角板上3个角,它们分别是什么角?答案:两个锐角,一个直角7.猜一猜。猴博士说:“一个长方形剪去一刀,还剩下几个角呢?”答案:58、比较长方形与正方形。长方形的对边(),四个角都是()角。正方形的四条边(),四个角都是()角。答案:相等,直角相等,直角9、说一...
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