组卷题库 > 初中数学试卷库
试题详情
解答下列各题:

如图,已知 , 试说明 . 请将过程填写完整.

解:∵

                  ▲                  

                  ▲                   . (                  ▲                  

                  ▲                                    ▲                                    ▲                  

又∵

                  ▲                  

                  ▲                  

知识点
参考答案
采纳过本试题的试卷
教育网站链接