Setbacks, easements, and lot dimensions all need to be checked and communicated precisely, not eyeballed. Click the Measures button in the drawing toolbar and choose one of the following.
Temporary measurements
Tape measure and Tape measure (area) are spot-checks. They disappear once you click away.
Select Tape measure (or press
Shift+L) or select Tape measure (area).Click to place the first point, then click for each additional point.
Close the shape by clicking near your first point, or press
SpaceorEnter.
Permanent dimensions
Dimension (linear) and Dimension (area) stay on the canvas after you finish.
Dimension (linear) (or press Shift + D): click to place the first point, click for each additional point, then close it by clicking near your first point or pressing Space or Enter.
Update the style of a dimension using Appearance and label properties.
Dimension (area): click to place the first point, click again to set the width, then click a third time to finish.