Using Direct Distance Entry

To specify a line length quickly without entering coordinate values, you can specify a point by moving the cursor to indicate a direction and then entering the distance from the first point.

You can use direct distance entry to specify points for all commands except those that prompt you to enter a single real value, such as ARRAY, MEASURE, and DIVIDE. When Ortho mode is on, this method is an efficient way to draw perpendicular lines.

See Also
Using PolarSnap