新北师大版五年级数学(上册)第四单元试卷
北师大版五年级数学(上册)(第四单元:多边形的面积)学校班级姓名成绩一、填一填(第1小题每空1分,其余每题3分,共31分)⒈ 4.6㎡=( )d㎡ 320c㎡=( )d㎡ 1.02公顷=( )平方米 8平方米5平方分米=( )平方米⒉ 一个平行四边形的底和高都是1.6m,它的面积是( )㎡,和它等底等高的三角形的面积是( )㎡。⒊ 一个直角三角形的三条边分别是6cm、8cm和10cm,这个直角三角形的面积是( )c㎡,斜边上的高是( )cm。⒋ 两个完全一样的梯形或三角形都可以拼成一个( )。⒌ 一个正方形的周长是24dm,它的边长是()dm,面...
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