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一、紧扣概念分辨例1 下列语句错误的是( ). A.相似图形不一定是位似图形B.位似图形一定是相似图形C.同一底版的两张照片是位似图形D.放幻灯时,底片上的图形和银幕上的图形是位似图形解析:由位似图形的概念知:(1)每组对应点所在直线经过同一点的相似图形是位似图形.(2)每组对应点所在直线不经过同一点的相似图形, 不是位似图形.(3)位似图形一定是相似图形.
First, the concept of clasping the concept of discrimination example 1 The following statement is wrong (). A. Similar graphics are not necessarily bit like graphics B. Similar graphics must be similar graphics C. The same two copies of the bottom photo is a similar figure D. In a slideshow, the graphics on the film and the graphics on the screen are bitmapped: the concept of bitlike graphics knows: (1) The similarity of the line where the corresponding point of each group passes through the same point is a bit like graph. (2) Each The straight line where the corresponding point of the group is located does not pass through the similar figure of the same point, and is not a bit like figure. (3) The bit like figure must be a similar figure.