Erasing Objects
To erase an object
- From the Modify menu, choose Erase.
- At the Select Objects prompt, do one of the following:
- Use a selection method to select the objects to be erased.
- Enter L (Last) at the Select Objects prompt to erase the last object drawn. Enter p (Previous) to erase the last selection set. Enter all to erase all objects from
the drawing. Enter ? to see a list of all selection methods.
- Press ENTER to complete the command.
Modify toolbar: 
Command line equivalent: ERASE