四年级下册数学同步练习-1单元2课时-旋转-苏教版
http://t.cn/Ri466E4新苏教版四年级下数学第1单元第2课时旋转3.图形A旋转()度得到图形B.4.时针由数字3顺时针转到7,旋转了()度.二、选择题1.如图,由图A到图B是()。A.平移B.旋转C.对称2.下面物体的运动是旋转的有()A.自行车的运动B.热气球的上下运动C.光盘的在DVD中的运动D.抽屉的运动3.将绕中心逆时针旋转90度得到的图形是( )教育1http://t.cn/Ri466E4A.B.C.D.三、解答题(1)图形1如何到图形2?(2)图形2如何到图形3?(3)图形4如何到图形2?(4)图形3如何到图形1?教育2
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