Today I'll conclude my 3-post series on drawing rectangles in AutoCAD LT. (Who'd have thought there could be so much to say about rectangles?)
This time, you start the RECTANG command, pick your first point, and enter A for Area.
Specify other corner point or [Area/Dimensions/Rotation]: A
The next prompt is for total area. Remember to use the current units, i.e. square inches for architectural drawings.
Enter area of rectangle in current units <100.0>: <enter number>
Then you're asked for either the length (aka X direction) or the width (Y direction), to be used in calculating dimensions.
Calculate rectangle dimensions based on [Length/Width] <Length>:
Enter rectangle length <10.0000>: <enter number>
The sign of the number you enter determines which side of the cursor your rectangle ends up on. Positive numbers create rectangles above and to the right (positive X and Y), and negative numbers create rectangles below and to the left (negative X and Y).
You may notice that this finishes the command. So if you want to use the Rotation option too, you'll need to set it first.