论文部分内容阅读
一、题目呈现题目:如图1,正方形ABCD的边长为6,点O是对角线AC、BD的交点,点E在CD上,且DE=2CE.过点C作CF⊥BE,垂足为F,连结OF,则OF的长为.该题是2014年重庆市中考数学试题的第18题,即填空题的最后一题,即为填空题中的压轴题.此题叙述简明扼要,图形简单明了,所求解的问题单一常见,但通过探究发现,其内涵十分丰富,是一道值得探究的好题.现将探究所得呈现于后,与广大同行分享.
First, the topic presents the subject: As shown in Figure 1, the side of the square ABCD is 6, point O is the intersection of the diagonal AC, BD, point E on the CD, and DE = 2CE. The length of F is OF, the length of OF is the length of the question. This question is the eighteenth question of the math test in Chongqing in 2014, which is the final question of the blank-fill question, which is the finale of the blank-fill question. , The figure is simple and clear, and the problems solved are single and common, but it is found through exploration that its connotation is very rich and is a good question to explore. Now, after the exploration proceeds are presented, it is shared with the vast majority of peers.