The Measurement FB:
The Dimension in the graphic area may be the:
The FunctionBlock:

Kinematics FB toolbar > Measurement FB [right of GraphicArea >>] 


Menu: 
Add menu > Add Measurement FB 

Add: 
The Measurement FB and the measurement dimension show in the graphicarea. 

Use: 
There are three different ways to use the motionvalues at the outputconnector of a Measurement FB:




See Also: 


Measrement FB between two Points 
The Measurement FB is near to the dimension. You can drag the FB to a more convenient location. In this example: The dimension is between two Points The Measurement FB has two outputconnectors when it measures between two Points The Measurement FB has one outputconnector when you measure between other sketchelements. See details below for motionvalues available from the outputconnectors. 


ScreenShot 
SketchElements 
Measurement Dimension 

Line or CADLine. Circle or Arc. 
Length: The length of the Line! Radius: The radius of the circle or arc. 

Two Parallel Lines. NOT RECOMMENDED 
NOT RECOMMENDED... It is often difficult to measure the distance between two parallel lines. The Measurement FB will often return the angle between the lines as 0º, 360º or 180º. Measure from one of the Lines and a Point at the end of one of the Lines. See Also: Angle Measurement between Two Lines, and Distance between Line and Point. 

Two Points 
Distance between two Points. The Measurement FB has two outputconnectors:


Point and a Line 
Perpendicular Distance between a Line and a Point. Select the Point, then the Line. You many need to add a Line to a Part in the PartEditor. To measure a 'Horizontal Distance' or a 'Vertical Distance' you can select the Xaxis or Yaxis as a Line. 
My workaround when two Points are at one Point, but I want to add a measurement with the Point at the apex of an angle.
When you do this, the angle is not yet giving the angle you actually want.
Now, the angle is the angle you want. Measurement: Angle between Three Points In the graphicarea:
Point '1' is the 'apex' of the angle.
The Measurement FB displays the counterclockwise angle from Point '2' to Point '3'. 

ScreenShot 
SketchElements 
Measurement Dimension 

Three Points

Internal Angle Angle is from to in a CounterClockwise direction. 

Three Points

External Angle Angle is from to in a CounterClockwise direction. 

After you select the two Lines, and before you click in the graphicarea to place the Measurement FB and angle dimension, you can display one of eight possible angles. Move your mousepointer around the apex of the two lines: Counterclockwise : dimension < 180° , namely, the Acute, Obtuse, Supplementary and Vertical angles, Clockwise : dimension > 180° : namely, the 'reflex angles' to those < 180°. 