我们把形状相同的两个图形叫做相似图形.如果两个图形不仅相似,而且对应顶点的连线相交于一点,称这两个图形位似.因此,图形之间的这种位似变换是特殊的相似变换.位似变换有许多特性,在现实生活中也有广泛的应用.以下从三个方面来剖析位似图形.1 位似中心和位似比位似图形对应顶点的连线相交于一点,这个交点 We call two shapes with the same shape as similar figures. If two figures are not only similar, but the lines corresponding to the vertices intersect at one point, the two figures are said to resemble each other. Therefore, this bit-like transformation between the figures is special. The similarity transformation. There are many characteristics of the bit-like transformation, and it is also widely used in real life. The following analysis of the three-dimensional space-like graphics. A similar center and a bit like the corresponding vertices of the similarity graphics intersect at a point , this intersection