请教OG11（yellow)P274页中一段话的意思

惘默

   5. Be very careful not to make unwarraned assumptions based on the images represented.

      Figures are not necessarily drawn to scale; they are generalized figures showing little more than intersecting line segments and the relationships of points,angles, and regions. So ,for example, if a figure described as a rectangle looks like a square,do not conclude that it is, in fact, a square just by looking at the figure. 

     今天过了一遍OG对数学的解释，但是DS解释中的这句话是什么意思啊，figure 指的是什么？  可能是比较白痴的问题吧，但是多谢赐教。

myamanda

其实第一句话大致意思就是由绝对数字figure得不出比例吧