User`s guide

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Lesson: Creating Basic Objects 83
5.
Practice using the Undo options, BEgin and
Back.
On the command line, enter UNDO. Press
ENTER.
Enter BE (for BEgin). Press ENTER.
On the command line, enter L. Press
ENTER. Draw some continuous line
segments. Press ENTER to complete the
line command.
Draw some circles, rectangles and arcs.
With the command line blank, press the
up arrow on the keyboard to scroll to the
UNDO command. If you pass it, use the
down arrow to scroll back. When Undo is
in the command line, press ENTER.
Enter B (for Back). Press ENTER.
This should undo the lines that you
created.