How to intercept a part of an entity in CAD

How to cut entities in CAD;

Command: SL (slice), then select the entity, and then click three points in turn on the non-* * surface, which is the section plane. After confirmation, you will be prompted which part to keep. You can directly click on the part to be saved, or you can keep both parts, and then delete the unnecessary parts.

Extension: CAD-aided design refers to the use of computers and their graphics equipment to help designers complete the design work. Computers can be used to process graphic data related to editing, enlarging, reducing, translating, copying and rotating graphics.