How do I extend a line to a block or trim? seems like every time i trim or extend the line to a block the line won't recognized/notice the block. what can i do?
A block is not a simple object but a compound object. You can extend to an object inside the block (subentity) if you start the Trim/Extend command before picking the object. You can't Extend to a block because AutoCAD doesn't know which subentity to use as a target.