In junior high school, most words are used as auxiliary lines. The last few questions are generally combined with numbers and shapes. Similar triangles can solve the relationship between many line segments. If it is a fill-in-the-blank question, you may wish to draw an equal scale diagram directly to facilitate your calculation. As for the last question of the big question, you can give up and ensure your correct rate. After all, the time should be arranged reasonably, don't be nervous, and try to think about what the teacher usually says.