To Measure Perpendicular Distance from an Element

Select the Measure Distance tool ( Drawing > Analyze > Measure ).
In the tool settings window, set Method to Perpendicular.
Turn off Segment Only.
Select the element.
Enter a data point.
The perpendicular distance between the nearest part of the element and this point is displayed in the Distance field. A temporary line is displayed as a visual aid but is not placed in the design.
Do one of the following:

Enter another data point(s) to define other perpendicular measurements.

or
Reset to return to step 4.