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这是一道中考数学开放性问题:如图1,有一破残的轮片,现要制作一个与原轮片同样大小的圆形零件,请你根据所学的有关知识,设计两种方案.确定这个圆形零件的半径. (02年山西中考)
This is an open question in mathematics in the entrance examination: As shown in Figure 1, there is a broken wheel. Now we must make a circular part of the same size as the original wheel. Please design two plans based on the knowledge you have learned. The radius of this round part. (02 Shanxi Shanxi University Entrance Examination)