1) State some practical applications of parallel lines that you encounter in your everyday life. 2) Based on what you've mentioned, what happened if the applications or examples you've mentioned are not truly parallel? 3) Can you think of any scenarios where the axiom of parallelism is violated or does not apply? What happens in those situations?

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?